Chemistry questions and answers in February 2023

. Unit 2 Assignment Use the following information to answer the next question. Electrochemical Cell Salt bridge Pt(s) Ni(s) K*(aq) NO, (aq) 1.0 mol/L 1.0 mol/L HNO,(aq) Ni(NO,),(aq) Beaker A Beaker ...

. 5. The reaction below at 2185 .C and an initial 1.00 atm pressure H20(g) is 12% decomposed into H2(2) and O2(g). Calculate Kp for the process. 2 H20(8) 2 H2(B) + O2(8 ) 6. For the reaction below a...

. EQUILIBRIUM PART 2 If you use a simplification assumption, you must check its validity!!! 1. [Agtli = [Cl]i = 0 a) Set up expression for Kc (aka Ksp for solubility equilibria) and b) Find the [Ag*...

Please show your work.. 9) (a) Derive an expression for (OU/OT)p starting from enthalpy. (b) What is the answer to (a) for an ideal gas. 10) Calculate (T2/T1) for a reversible expansion of a monoatomi...

options: fast, medium-fast, slow, instant options: comparison of similar measure to unknow value comparison of measurement of precision across multiple trials comparison of similar measure...

O. ivorites Dell McAfee Security Question 11 of 50 A sample of gas at a constant pressure initially has a temperature of 298.15 K with a volume of 3.91 L. The temperature changes to 375.15 K. Calculat...

Question 9 of 50 A sample of gas at a constant temperature has an initial pressure reading of 361.0 torr with a volume of 2.50 L. After a change in volume, the final pressure reading is 626.5 torr. Ca...

Please answer this question.. 2. It should be possible to express stationary solutions to Schrodinger's equation in Problem 2 of problem set 4 as eigenfunctions of the angular momentum operators, 12 a...

. Question 7 1 pts 3% H202 are safe for home use. Nevertheless, there are some hazards associated with such products. Describe the dangers involved if an H202 solutions spills on your bench. It's a ...

. stemble X Course Hero x + X app.stemble.ca/courses/424/assignments/844/tasks/169 stemble A3 - Acid/Base Equilibria Assignment Info 13/16 tasks attempted Sarah Y. Blake Started Thu, Feb 16 at 9:00 ...

CuSO 4 absorbs light strongly at a wavelength of 635 nm. Consider that you measure the initial intensity of light, I o , entering the solution at 635 nm, and the intensity of light passing through t...

. 5. Treatment of A with Ag generates B. At elevated temperatures a 50/50 mixture of B and B' is formed. Propose mechanisms for the conversions of A to B and B to B'. (dmpe = bis- dimethylphosphinet...

For the problems below, when a numerical answer is required be sure to SHOW ALL WORK and give answers with the correct units and the correct number of significant figures to receive full credit. (CIRC...

please show workings. Due 6:15 PM, March 1 1. At the beginning of a certain reaction, the concentration of reactant is 0.720 M. After 12.00 minutes, the reactant's concentration has dropped to 0.295 M...

Hi, I have been struggling on these questions. Can you help me out . 1. For the quantum number n = 3, what values of / are 7. allowed, what values of my are possible, and how many orbitals are there?...

5. A cationic organic soil conditioner was found to be effective in preventing dispersion of soil aggregates when applied at a rate of 0.5 g concentrate per kg of dry soil. If you wish to prevent ...

. stemble X Course Hero x |Q monoprotic - Bing Search x + X app.stemble.ca/courses/424/assignments/844/tasks/169 stemble A3 - Acid/Base Equilibria Assignment Info 11/16 tasks attempted Sarah Y. Blak...

with detailed solution handwritten neat and clean . D. Potassium carbonate (K2CO;) (MM: 138.205 g/mol) can be synthesized by passing CO2 gas in a solution of potassium hydroxide (KOH). A 2.0 L solut...

The following data are for the decomposition of nitramide in aqueous solution at 25 .C. NH2NO2(aq) - N20(g) + H20(1) [ NH2NO2 ], 0.882 M 0.441 0.221 0.111 time, min 0 175 350 525 Hint: It is not neces...

. H,2(aq) + OCI-(aq) > H,Om + Cl-(ag) + 02(8) A student investigates the reaction between 0.800 M H,O,(aq) H,O20) and NaOCl), which is represented by the net-ionic equation shown above. Gas Colle...

Thank you In advance, help for a study guide!. Question 14 (1 point) Listen Convert the following expanded structure formula to the correct skeletal structure. H H - C - H H H - C H H C C H H - - H H ...

Thank you In advance, help for a study guide!. Question 4 (1 point) Listen Convert the following skeletal structures to expanded structures. O C C C O O H - H - C H C. H C H H O _ H O H H - H H H H H ...

. 6. Derive the relationship between the van der Waals parameters a and b and the critical constants for temperature, pressure, and volume.. 7. The critical temperature and critical pressure of naph...

Description: Different atoms have the ability to make different numbers of bonds. Carbon in particular is known to only make 4 bonds whereas most metals can make upwards to 6 bonds to different liga...

. The patient is a middle age male with PNH with a clinical picture of anemia (normocytic, normochromic), leucopenia and thrombocytopenia. The peripheral smear shows slight macrocytosis and polychro...

f. In the laboratory, the hydrate CaSO" « 2 H30"! can be heated in a crucible to completely.r drive off the water of hydration to form the anhydrous salt, CaSOm. A 2.49 g sample ofpure CaSC}4 - 2...

d. MnO - + 5 Fe2+ + 8 H* > Mn2+ + 5 Fel+ + 4 H,O In the reaction represented above, the number of MnO ions that react must be equal to which of the following? A One-fifth the number of Felt ions th...

https://www.epa.gov/ghgemissions/sources-greenhouse-gas-emissions#transportation (Links to an external site.) 1. Discuss the important findings from this document. 2. Select a Source of greenhouse gas...

d. 2 H,O + 4 Mno () + 3 CO 2"(aq) > 4 MnO. 2(s) + 3 CO + 4 OH (aq) According to the balanced equation above, how many moles of CIO, 2 (ag) are needed to react completely with 20. mL of 0.20 M ...

. 2. (2 pts) A 1000. ppm Hg solution in 0.2% HNO3 was purchased as a stock for the preparation of calibration standards in mercury analysis. A 1-ml aliquot of this stock was placed in a 100-ml volum...

The gas-phase decomposition of di- tert -butyl peroxide, (CH3)3COOC(CH3)3(CH3)3COOC(CH3)3, is first order in the temperature range 110∘C110∘C to 280∘C280∘C with a first-order rate coefficient ...

Pretend you are in a lab where in which we will be calculating ΔrH for several chemical reactions using the technique of constant-pressure calorimetry. We will be monitoring the temperature of the ...

How am I supposed to get the mass of one formula unit? Does it matter for compounds that are not in the lowest ratio?. - 0. 0.716 38 3. i) Calculate the molar mass of the following compounds: = 0. 071...

Please help me with this instrumental analysis problem soon! Calculate the enhancement in intensity expected for analysis of Ca 2+ (441.7 nm) in ICP at a temperature of 7000K compared to flame emis...

. Use the following energy level diagram for diatomic molecules to determine the bond order and the number of unpaired electrons for each molecule. You can use the same energy level diagram that was...

. Each of the following reactions is allowed to come to equilibrium and then the volume is changed as indicated. Predict the effect (shift right, shift left, or no effect) of the indicated volume ch...

. MISSED THIS? Read Section 16.9 (Pages 711 - 718) ; Watch KCV 16.9. The following reaction is endothermic: C(s) + CO2(8) 2CO(g). Predict the effect of increasing the reaction temperature. O The rea...

. Review | Constants | Periodic Table Part A MISSED THIS? Read Section If a reaction vessel initially contains an N2 04 concentration of 0.0550 M at 500 K, what are the equilibrium 16.8 (Pages 701 -...

find the electron configuration of the highest-filled sublevel for each of these elements. Try this without writing the full electron configuration. boron germanium technetium tellurium Fill in t...

. A 1.33 L buffer solution consists of 0.168 M butanoic acid and 0.272 M sodium butanoate. Calculate the pH of the solution following the addition of 0.075 moles of NaOH. Assume that any contributio...

. A 1.40 L buffer solution consists of 0.269 M propanoic acid and 0.109 M sodium propanoate. Calculate the pH of the solution following the addition of 0.068 mol HCl. Assume that any contribution of...

. Data Record all data with appropriate labels and units. The following data tables need to be transcribed into your lab notebook for data collection during lab. Anﬂlysis Ice Bath Trial #1 2...

. .._...._. ,__ Important Note: Be sure to use proper superscripts and subscripts, even if you are typing! Marks may be deducted. Convenient Microsoft Word shortcut. Superscript (ctrl-shift—+), su...

. (a) How many cubic feet of an ideal gas, measured at standard conditions of 60°F and 14.73 psia, are required to fill a 100-cu ft tank to a pressure of 40 psig when the temperature of the gas in ...

The black line between elements 56 and 71 in the periodic table shown indicates that in the Lanthanide series elements, 57 through 70 are listed below the main table, while in the Actinide series elem...

The normal freezing point of a certain liquid X is −9.5°C , but when 1.353g of urea NH22CO are dissolved in 100.g of X , it is found that the solution freezes at −10.5°C instead. Use this inform...

A reaction between liquid reactants takes place at 18.0°C in a sealed, evacuated vessel with a measured volume of 40.0L . Measurements show that the reaction produced 33.g of boron trifluoride gas. C...

1. What is the difference between a poison and a toxin ? 2. What are the three major methods for being poisoned ? 3. What are the four major types of toxic substances ? ?...

Please explain the below answers. . Part D: [5 marks] Please circle the only one correct answer for each of the following questions. All solid ﬁnes represent phase boundaries. In the phase di...

. At 35 C, K = 1.8 x 10- for the reaction 2 NOCI(g) - 2NO(g) + Cl2 (g) Calculate the concentrations of all species at equilibrium for each of the following original mixtures. a. 3.8 moles of pure NO...

There are several common counting units: 1 dozen=121 dozen=12, 1 score=201 score=20, 1 ream=5001 ream=500, and 1 gross=1441 gross=144. The mole (molmol) is a counting unit used by chemists, mu...

You perform the Dumas experiment described above and calculate the mass of an unknown gas to be 2.220 g. You find the volume of your Erlenmeyer flask to have a volume of 254.1 mL. You measure the ...

A weather balloon filled with 100.0 L of He is lunched from ground level (T = 20.00 ○C, P = 755 torr). Calculate its volume at an altitude of 10 km, where the temperature and pressure in the bal...

. The two types of filtration 2. Classify as a chemical property, chemical change, physical property, or physical change: a) antimony flaming in chlorine gas f) liquid antimony cooling to form solid...

Can I please get help?. CH 04 PSET Exercise 4.71 12 Review | Constants | Perio Determine the theoretical yield of aspirin for the reaction. Express your answer in grams to three significant figures. A...

With the advent of Coronavirus, discuss the trilogy of (1) Business Planning; (2) Market Share Planning; and (3) Disaster and Recovery Planning and its impact on technology and corporations' new way...

a) A weak acid has K A = 4.48 x 10 -3 . What is the pK B of its conjugate base? b) What is [OH - ] in an aqueous solution (in mol L -1 ) containing [H 3 O + ] = 6.87 x 10 -4 mol L -1 ? c) What the...

i would like to check my answers, please . Question 1 (1 point) Saved Which of the following rate laws for the aqueous reaction below is consistent with this mechanism? KI NaOCI + H20 HOCI + OH + Na...

Hello there, I am working on my project and I just want to make sure my steps for 2. I keep 3rd question because of the reference underneath. Thank you. . (5 marks) Write a stepwise procedure to m...

2.. One mole of a gas occupies one half of a container that is separated from the rest of the container by a partition. The initial volume of the gas is V and its temperature is T. After the partition...

. 6 7 points Notes: Type your answer in rich content editor. Use Yx' button in the tool bar to open the Math Quill editor to show your work. Type your answer with the part number (a, b, c, and so on...

. 9:45 AM Mon Feb 27 . . . 99% Bb Chapter 5 Contents - Bla X My Home X OWLV2 | Online teaching X K prod03-cnow-owl.cengagenow.com 3 . . . Chapter 5: The Gaseous State Review Topics] 1. Pressure Unit...

chen questions. Unit 5 Study Guide concepts: Complete the following problems in order to review your own understanding of the major Unit 5 Definitions: Atomic mass unit: Average atomic mass: Avogadro'...

. Water can form hydrogen and oxygen gas under electrolysis conditions. D Question 10 1 pts Suppose your sample was 30.26 % of acetanilide and the sample mass was 5.231 g. Considering acetanilide's ...

. Consider the following mechanism for the decomposition of nitrogen dioxide: 1'40:ng * 3—019) 'l' 0(9) (1} 0m + 303(9) - 02(9) — NW9} (2} Write the chemical equation of *D the overall react...

. —1 Under certain conditions the rate of this reaction is zero order in ammonia with a rate constant of 0.0090 M - s : 214mg) —-N3£g}—3Hg{g} Suppose a 2.0 L flask is charged under these cond...

Video: https://www.youtube.com/watch?v=l8_fZPHasdo&t=1s . After you have watched the "How do we see color?" video, answer the following question: Our Sun radiates more green photons ...

. Calculate the mass of zinc plated onto the cathode of an electrolytic cell by a current of 750 mA in 1.25 h. (2.97 g) 3 How many minutes does it take to plate 0.925 g of silver onto the cathode of...

. Consider the titration of a weak diprotic acid H2A with a strong base. If it takes 20.0 mL of strong base to reach the ﬁrst equivalence point, then what total volume of titrant (in mL) must be a...

Hi there i just go t my tests back from chemistry and i would like to know what i did wrong. I did not do so well on this test. Please show me the correct way and if you could explain how you got ther...

. At 35 C, K = 1.4 x 10 for the reaction 2 NOCI(g) - 2 NO(g) + Cl2 (g) Calculate the concentrations of all species at equilibrium for each of the following original mixtures. a. 2.4 moles of pure NO...

1. Hexane molecules will have alcohol.Does it have a polarity? Would hexane dissolve without polarity? 2. What are the physical phenomena of the hydration of ions? 3. The 10% by mass molarity of the a...

Hello, Has anyone done this lab ?? Experiment A: Precipitation Reaction In this experiment, you will examine a precipitation reaction between two common household chemicals. Sodium carbona...

Question 21 (2 points) Three 1.00-L flasks at 25°C and 725 torr contain the gases CH 4 (flask A), CO 2 (flask B), and C 2 H 6 (flask C). In which flask is there 0.039 mol o...

. To calculate the mass of magnesium carbonate that will be formed in Expt A, first you need to find the mass of sodium carbonate used in the reaction from the mass of sodium carbonate decahydrate y...

Hazard Analytical Result Volume (Time) Manganese Fume 5 µg 30 L (15-minute) Copper Fume 140 µg 960 L (8-hour) Lead Fume 40 µg 960 L (8-hour) 1,2,4 trimethylbenzene 5 µg 48 L (8-hour) Tolue...

1. Explain the effect of not heating completely on your calculated % water in a hydrated salt.? 2.Explain how spilling the contents of the crucible after heating but before weighing effects the calc...

RESPOND TO THE FOLLOWING TEXT: Because the pollution originates from so many different sources, foods with both plant and animal origins, such as grains, rice, wheat, edible roots, and mushrooms, a...

Please help WITH ALL of these and show all and all answers neatly thanks please let me know if you have any questions!. Open with South Pasadena . Honors Chemistry Name 9 . Solutions Period Date 9. 3 ...

For the reaction shown, calculate how many grams of each product form when the following amounts of reactant completely react to form products. Assume that there is more than enough of the other react...

1) During her presentation, Zahara was asked several questions from the audience and to provide the molecular formula for molecules that the audience had questions about. Show Zahara how to name Type ...

1. Dr. Laila Malik has been tasked to help her graduate student with making a ground-breaking molecule, but she has to start with helping the student understand how different elements bond to each oth...

1) Dr. Laila Malik has been tasked to help her graduate student with making a ground-breaking molecule, but she has to start with helping the student understand how different elements bond to each oth...

1.)Ammonia (NH3) gas and oxygen (0₂) gas react to form nitrogen (N₂) gas and water (H₂O) vapor. Suppose you have 1.0 mol of NH3 and 7.0 mol of O₂ in a reactor. Calculate the largest amount of ...

. pport Lenovo McAfee M Gmail YouTube Maps 27:23 Which of the following species are present in the reaction between sodium and calcium iodide? (Select all that apply Select all that apply: O Na OI C...

Please show your work.. 1) Calculate the final temperature when a monoatomic ideal gas at 300 K expands reversibly and adiabatically from pressure of 10 bar to 5 bar. 2) For the problem in (1) calcula...

A Buret has an uncertaint of (+/-) .02 mL, thus: . Trial Experimental True Calibration Volume Observ True Correct Temp. Mass Corrected (mL) ed Vol. Vol. ion (09) (@) Vol. (mL) (mL) (mL) (mL) 15 1...

. Trial 1 Trial 2 Trial 3 Volume vinegar used in titration (1 pt 10 ML 1oml 10 ml ea) Initial Buret Reading ( NaOH) (2 pts ea) 0- 75ml 0. 45ml / 1. 9 1 ml Final Buret Reading (NaOH) (2 pts ea) 31. 6...

Write the complete electron configuration for the zinc atom. Using NOBLE GAS notation write the electron configuration for the copper atom. Write the complete electron configuration for the chlorine a...

You've asked your friends to define the term "chemical." With which definitions do you agree? A chemical is a substance that has the same composition but different properties w...

. Using Hess' law, what is AArxn at 25'C for the following reaction? CIF(g) + F2(g) - CIF3(g) 2CIF(g) + 02(g) - Cl20(g) + OF2(g) AHrxn = +167.4 kJ/mol 2CIF3(g) + 202(g) - Cl20(g) + AHrxn =+341.4 kJ/...

. Using Hess's law, what is AHrxn for the following reaction? WO3(s) + 3H2(g) - W(s) + 3H20(g) 2W(s) + 302(9) - 2WO3(s) AHrxn = -1685.8 kJ/mol 2H2(g) + 02(g) - 2H20(9) AHrxn = -483.6 kJ/mol Multiple...

Question 3 Question 4 Question 5 Choose the alternative that best defines potential energy. It is energy that cannot be created, destroyed, or transformed from one form to another...

A box contains a mixture of cobalt spheres and platinum spheres. The total mass of the combined spheres is 4.08 kg, and the total volume of both metals is 411 mL. What percentage of the spheres are co...

. Jeft's body contains about 5.29 L of blood that has a density of 1060 kg/m3. Approximately 45 0% (by mass) of the blood is cells and the rest is plasma. The density of blood cells is approximate...

When ice at 0°C melts to liquid water at 0°C, it absorbs 0.334 kJ of heat per gram. Suppose the heat needed to melt 42.5 g of ice is absorbed from the water contained in a glass. If this water has a...

. Name: ( I] 5 pts) Show work, units, and balanced equations! all ﬁnal answers. 1. Complete the bolded columns in the table below. Order Rate Law Integrated Rate Law Linear Plot ' Units of k (e...

Draw the Lewis Dot structure for the following diprotic acid: HOOC-CHOH-CHOH-COOH. 85.5 mL of this acid is titrated to the equivalence point with 67.1 mL of 1.4 M LiOH. Write the balanced equation...

2. A container with a moveable piston is filled with 10.0 L of air at 30 atm. If the piston is compressed to a new volume of 3.00 L, what is the new pressure inside the container? 100 atm 1 at...

What is the %(w/w) (mass percent) and molarity of a solution that is created from 12.63 grams manganese (IV) oxide and dissolved in 474.04 liters water to the mark in a volumetric flask? Assume mangan...

. Report Table SEC.1: Polarity of Solutes and Solvents Table view List view Solubility and polarity of compound Solubility in water Solubility in cyclohexane Polar or non-polar solute Choose... KMn0...

. (14pts) Calculations Complete the following calculations. Mass calculations Mass of watch glass and evaporating dish: 69.369 g Mass of watch glass, evaporating dish, and Mg ribbon: 69.639 9 (1 pts...

The data are in the pictures please show your work /calculation . Ontario Tech University CHEAT 1020 / 1800, 12], Eqp 3 . dad Results, Discussion and Questions NOTE: This is a very long report to pr...

Please help, thank you!. 2. Write the formulas for the following ionic compounds. Please show the cation and polyatomic ion charges as part of your work (6 points). You may use the table below for ref...

. How many grams of the excess reactant will remain after the reaction is complete? mass of excess reactant: l l g Enter numeric value. The Ostwald process is used commercially to produce nitric aci...

. For the chemical reaction, 2 AgNO, + Na, Cro4 - Ag2 Cro + 2 NaNO, what mass of sodium chromate in grams is needed to produce 2.63 mol of sodium nitrate? mass: g. For the chemical reaction Na, CO, ...

In the experimental setup shown here, calcium carbonate reacts with hydrochloric acid. One of the products of this reaction is a gas. The gas is fed through a tube into a second test tube containing l...

. Experimental Data: Part 1: NaOH (aq) + HCI (aq) Volume of NaOH (aq) = 50.0 mL Volume of HCI (aq) = 50.0 mL All densities = 1.030 g/ml All concentrations = 2.00 M Initial temperature = 21.43 C Fina...

A sample of krypton gas at a pressure of 766 mm Hg and a temperature of 64 ° C, occupies a volume of 9.82 liters. If the gas is cooled at constant pressure to a temperature of 29 ° C, the volume o...

. 3:43 PM Fri Feb 24 44% OWLV2 | Online teaching X Course Hero X G ou chemical name - Good X + prod03-cnow-owl.cengagenow.com 3 . . . Chapter 4: Chemical Reactions [Review Topics] [References] 1. St...

When calcium carbonate is added to hydrochloric acid, calcium chloride, carbon dioxide, and water are produced. CaCO3(s)+2HCl(aq)⟶CaCl2(aq)+H2O(l)+CO2(g) How many grams of calcium chloride...

. 2:30 PM Fri Feb 24 . .. 16% Bb Assignments at the Black X OWLV2 | Online teaching X prod03-cnow-owl.cengagenow.com 2 . . . Chapter 4: Chemical Reactions [Review Topics] [References] 28. Dilution: ...

The answered questions are incorrect and I need help figuring them out . 2:29 PM Fri Feb 24 . .. 16% Bb Assignments at the Black X OWLV2 | Online teaching X prod03-cnow-owl.cengagenow.com 2 . . . Cha...

For a 2D gas, what is the most probable value of the speed? Give answer in terms of (k B T/m) 1/2 . In a 2D gas (as would be the case for molecules adsorbed and diffusing on a surface), what fra...

Complete combustion of 2.00 g2.00 g of a hydrocarbon produced 6.51 g6.51 g of CO2CO2 and 2.00 g2.00 g of H2O.H2O. What is the empirical formula for the hydrocarbon? Insert subscripts as necessar...

These answers are wrong and I need help finding the correct answer . 11:10 AM Fri Feb 24 . . . 56% Course Hero X potassium bromide and h X OWLV2 | Online teaching X + prod03-cnow-owl.cengagenow.com 3...

State the number of electrons lost or gained when the following elements form ions: . State the number of electrons lost or gained when the following elements form ions: Part A Ra Express your ans...

In the following part of the project, you will given three pairs of molecules. You will need to: Draw the lewis structure if not provided 1) determine whether the molecules are polar or non polar?...

1. What is the largest yield of ammonia that you can get if you mix 12g of nitrogen gas with 12g of hydrogen gas? 2. What is the concentration of the different types of ions in a solution of calciu...

1. sodium hydroxide solution with a concentration of 0.20 mol/dm3 was added to 20.0 cm3 of a sulfuric acid solution of unknown concentration. The sulfuric acid was completely neutralized when 18.4 cc ...

Lab 6 Report 1. What is the objective of this lab activity? (1 point) Why is it an interesting question to investigate in both the scientific and culinary context? (1 point) 2. What vegetables did you...

please answer these questions for me. Charles' Law VIII1= V2/ T or (V1 X T2 = V2 X T1) K = C + 273 or (C = K-273) 1. A sample of nitrogen occupies a volume of 250. mL at 25 C. What volume will it occu...

please answer these questions for me. Boyle's Law PIX VI_= P2X V (1000mL = 1L) 1. A sample of oxygen gas occupies a volume of 250. ml at 740. torr pressure. What volume will it occupy at 800. torr pre...

Procedure: For each of the following sections, follow the directions to the graph. Please help me to do the graph for #1 by hand using graph paper, a ruler, and a calculator. For #2 and #3, you may ei...

For this assignment, can you help me to find 2 real-life examples of how 2 different methods of filtering that can be used in a chemistry lab are used in the real world? It will be okay if you can use...

. 10:02 PM Thu Feb 23 . .. 19% 04 Course Hero X OWLV2 | Online teaching X prod03-cnow-owl.cengagenow.com 2 . . . Chapter 4: Chemical Reactions [Review Topics] [References] Use the References to acce...

. 10:02 PM Thu Feb 23 . .. 19% 04 Course Hero X OWLV2 | Online teaching X prod03-cnow-owl.cengagenow.com 2 . . . Chapter 4: Chemical Reactions Review Topics] References] Use the References to ...

. 10:00 PM Thu Feb 23 18% 04 Course Hero X OWLV2 | Online teaching X + prod03-cnow-owl.cengagenow.com U 2 . . . Chapter 4: Chemical Reactions Review Topics] 21. Chemical Equations: Combination.. . 1...

. 9:58 PM Thu Feb 23 18% 04 Course Hero X OWLV2 | Online teaching X + prod03-cnow-owl.cengagenow.com U 2 . . . Chapter 4: Chemical Reactions Review Topics] 15. Write NIE: Acid ' Weak Base 1 pts Use ...

Please vote I will upvote .. Identify the expression for the rate of the reaction with respect to each of the reactants and products. O 1AA A B 1 A [C] 2 At At 3 At O 1 A A] A B 1 A C rate= 3 At At 2 ...

. 06 H H O C 3 CO-H H C H O H H - H (a) What is the shape of the atom labeled 1? O linear O trigonal planar O bent at = 120* O tetrahedron O trigonal pyramidal bent at = 109* (b) What is the bond an...

Pick one of the elements listed below and describe it in detail including element symbol, atomic number, atomic mass, group/family, period and properties. Properties should include, but are not limite...

1) What is the difference between Nuclear charge and Nuclear Shielding? (simple definition) 2) How to find lone pairs or bonded pairs for C2H6? (include lewis dot structure) 3) How to draw VSEPR struc...

. 18. Polarity of molecules What is it? There must be polar bonds in a polar molecule, but polar bonds are not enough for a molecule to be polar . How to figure out the polarity of the following mol...

Vinegar is a solution of acetic acid in water. If a 125 mL bottle of distilled vinegar contains 16.5 mL of acetic acid, what is the volume percent (v/v) of the solution? Express your answer to three s...

. (c) Name the products formed when the following pairs of compounds react together and then write a balanced equation for the reaction a. Fe(s) + b. C(s) + O2 (9) C. Na(s) + C12 (9) d. H2(g) + O2(8...

Suppose you were preparing 1.0 L of a bleaching solution in a volumetric flask, and it calls for 0.26 mol of NaOCl. If all you had available was a jug of bleach that contained 0.71 M NaOCl, what vol...

how do I get the technique point? . Concentration of salicylic acid stock solution (M) 0.00125 Amax (nm) 527 Report Table SA. 1: Absorbance Data for Known Salicylic Acid Solutions Concentration...

. 5. Spectrophotometry experiments are performed at the wavelength where an analyte absorbs strongest because it provides the most sensitive instrument response. Knowing what you now know about Beer...

Construct a graph of Mass versus Volume using the following data. Masa (g) Volumen (mL) 9.99 10.00 19.85 20.00 30.10 ...

A solution contains Al3+Al3+ and Co2+Co2+. The addition of 0.3613 L0.3613 L of 1.740 M1.740 M NaOHNaOH results in the complete precipitation of the ions as Al(OH)3Al(OH)3 and Co(OH)2Co(OH)2. The t...

. Two particles with charges +9e and -5e are initially very far apart (effectively an infinite distance apart). They are then fixed at positions that are 4.42 x 10-12 m apart. What is EPEfinal - EPE...

. Stock solution = 5.00 mL of 1.250x10"2M salicylic acid + DI water in a 50.0 mL volumetric flask. Dilution #1 = 10.00 mL stock solution, 2.50 mL of 0.0250 M FeCl3 + DI water to the mark in a 2...

. Concentration of salicylic acid stock solution (M) 0.00125 max (nm) 527 Report Table SA.1: Absorbance Data for Known Salicylic Acid Solutions Concentration calculations and absorbance data for ...

. Question 4 0 / 0.75 pts A 25.0 mL sample of 0.200 M HNO,(aq) is titrated with 0.150 M Ca(OH)2(aq). What volume of Ca(OH)2 must be added to reach the equivalence point? Enter your response in milli...

The contents of the hot pack are listed as sodium acetate, water, and a metal disk. State the change that occurs to the arrangement of the sodium acetate particles during the operation of the hot pack...

Chem. SPECIAL GAS LAW PROBLEMS NOT COVERED IN THE TEXT 1. Partial pressure and mole fraction a. A metal tank was filled with a mixture of four gases. The total pressu in the container was 1480 torr. T...

Beer's law describes how absorbance changes with concentration, A = εlc, where ε is the molar absorptivity (a constant characteristic of the substance), l is the path length (how large your cuvette ...

In this experiment you will determine the amount of energy (heat) involved in a chemical change. Experiments with candles have shown that during the burning the candle changes into at least three subs...

. Consider the following 4 Lewis structures. Which of the following substances has both an electron domain geometry of trigonal planar AND a molecular geometry of trigonal planar? Select all that :0...

. Which of the following substances has an electron domain geometry of tetrahedral AND a molecular geometry of trigonal pyramidal? To answer this question, you must draw the most preferred Lewis ...

[Review Topics] [References] Use the References to access important values if needed for this question. Does a reaction occur when aqueous solutions of iron (II) bromide and potassium phosphate are co...

thank you, what is the easiest way to solve . #124: You have a 1.00-mole sample of water at -30. C, and you heat it until you have gaseous water at 140. C. Calculate q for the entire process. Use the...

. 8. Practice Problems chemistry (Include all calculations and drawings] Using the handout posted on Bb, calculate the molecular and equivalent weights of: a. alum [AlzlSO4]3-14.3H20) b. lime c. fer...

. 4. Molecular Models of Alcohols, Aldehydes, Ketones, and Carboxylic Acids 49 Student name: ................ Course/Section: .. Date: Reactions acetal of butanal and methanol abios oftoal hemiaceta...

Please help me with these questions. I'm not sure how to even begin, let alone understand the details. . 4. Ozone production efficiency. When 03 production is in the NOx—limited regime, an importa...

. Name: Chapter 5 Worksheet #5 BOX YOUR ANSWER! Give the COMPLETE electron configuration, and the number of valence electrons for the following ions, and the core notation: 1) CI- Lit S-2 Sr+ Cost (...

I need help with the Calculations and Discussions part only . Data: (3) Solid Sodium Hydroxide and Acid Reaction C(solution) = 4.18 kJ/kg/C V HCI = 100. mL = 1.0g Density (solutions) = 1.0 g/ml...

Please answer asap. . Choose the valence orbitals that would be filled in the energy level diagram that represents the ground state of Ni. A) 14 45 3d B) 11 11 4s 3d C) 14 D) Is 25 2p E 11 3d OA O...

Consider this reaction: 2SO3 g →2SO2 g+ O2 g At a certain temperature it obeys this rate law. rate =(0.151s^−1)[SO3] Suppose a vessel contains SO3 at a concentration of 1.39 M . Calculate the conc...

The rate constant of a certain reaction is known to obey the Arrhenius equation, and to have an activation energy = Ea 28.0/kJmol . If the rate constant of this reaction is ×2.0103·M−1s−1 at 38....

Consider this reaction: H2CO3 aq →H2O aq+ CO2 aq At a certain temperature it obeys this rate law. rate=(0.0214s^−1)[H2CO3] Suppose a vessel contains H2CO3 at a concentration of 0.950 M . Calculate...

please help me do this crossword. thank you . Name: Period: Date: D STATES OF MATTOR & GAS BACKS crossword 2 6 3 10 12 14 IS 13 16 notes -states of matter & Behavior of gases Across 1. Condi...

The rate constant k for a certain reaction is measured at two different temperatures: temperature k 353.0°C 4.2x10^10 267.0°C 1.8x10^10 Assuming the rate constant obeys the Arrhenius equation, calcu...

DIS 1SSTOTT PIC This week we are learning about Gases in Chapter 11. As you have probably noticed, gases are all around us. The gas laws are active in our everyday lives. Please describe a situation i...

. 15. Calculate the mass (in ng) of 2.33 x 1020 atoms of oxygen. (4 points) 16. How many xenon atoms are contained in 2.36 moles of xenon? (4 points) with visible 17. Find the number of Na moles in ...

Help!. Rate Constant Homework . Unanswered . Due Today, 12:29 PM What is the value of the rate constant at 470 K? Type your numeric answer and submit Unanswered . 2 attempts left Submit Activation Ene...

Given the equilibrium equation: A + B ↔ C + D Based on Le Châtelier's principle, what direction will the reaction shift (toward reactants or toward products), for the following stresses: (b) add ...

Can anyone show me how to balance this equation? I think the first one is balanced if I am doing it correctly. But I'm not sure what goes in the blanks. I'm kinda lost.. NagPO4 + KOH -> NaOH + K3PO...

(4.3: Similar to Self-Assessment Quiz Q9) How many moles of SF6 form when 6.77 grams S completely reacts according to the reaction below? S (s ) + 3 F2(8) -> SF6(8) O 0.211 mol 0.411 mol O 0.423 mo...

. History Bookmarks Profiles Tab Window Help 7 0 8 Q g Tue Feb 21 7:5 Grades for X HW Ch4.2 X HW Ch4.2 X CHM 113 R X . Agota Deb X Agota Cha X Ch4_WS7 X Z Agota Deb X Chapter 5 X courses/144900/assi...

A general chemistry student isolated ciguatera toxin (a poisonous polyether produced by the dinoflagallete Gambierdiscus toxicus) from a red tide bloom off the coast of San Francisco, California. A pa...

Could you help me with the three question at the end . SOLUBILITY OF A SALT Submission Instructions: Work and submit as a group of maximum two people. Write both names in the top right-hand co...

. Below is data from several different chemical reactions. All reactions were started by putting some of every substance in the chemical reaction into an expandable/contractable container at 25 C. I...

. The following [product] versus time data were obtained for the reaction A + B + C - G. What is the rate law for this reaction? (i) [Product] (M) (ii) (iii) (iv) time (min) [A] (M) [B] (M) [C] (M) ...

Hi. I conducted SDS-PAGE gel to quantify LDH purity. Could you hep me answer this question? What are some drawbacks to using this method to determine the molecular mass of a polypeptide? What factors ...

According to the Federal Continuity Directive 1- Annex K, what are the four requirements and criteria for TT&E; explain in detail each area? According to the Federal Continuity Directive 1- Aft...

Show solution. Balance each chemical equation a . Mn 02 (s) + HC/ (ag) - C12 (9 ) + Mn C12 ( ag) + #20 (1) Coz (9) + Casiog (s) + Hy O(1) - Sio2 (s) + Ca ( Heo;)2 ( aq) C Fe (s ) + 5 (1) - Fezs3 ( 5) ...

20 4 points A study of the system, H2(g) + 12(g) <---> 2HI(g), was carried out. Kc = $4.9 at 699.0 K for this reaction. A system was charged with 2.50 moles of HI in a 5.00-liter vessel as the o...

01:59:02 V Time Remaining 2 4 points The reaction A @ Products is a zero-order reaction with a rate constant of 4.81 x 10-3 M s-1. If the reaction starts with a 33.1 M concentration of A, at what time...

. The concept of determining which reactant is limiting and which is in excess is akin to determining the number of sandwiches that can be made from a set number of ingredients. Assuming that a chee...

. A gas phase reaction between nitrogen dioxide and fluorine is proposed to occur by the following mechanism: step 1 slow: NO2 + F2 —> N02F + F step 2 fast: F + N02 —> NOZF (1) What is the...

Is this correct.. In the reaction of hydrogen gas and oxygen gas to form water, the glowing splint (1 point) O provides the activation energy for the reaction. O is one of the products of the reaction...

UNIT 5: Elementary Chemistry 73 Homework Assignment Note: Submit the following pages to your instructor on the due date. Name: Section: Instructor: Date: 1. Write the formula of the compound that will...

I have no much time, so please just give me an answer.. canvas D Question 14 Write the name of the species. Do not capitalize Nal D Question 15 Write the name of the following. Do not capitalize MgBr2...

I have no much time, so please just give me an answer.. Canvas A O Six Na< Ar D Question 7 Rank the following in order of increasing ionic radius: CI-, Ar, K+ O CI-<K+< Ar O Ar<k + < CI...

I have no much time, so please just give me an answer.. Canvas EEE D Question 1 Which of the following feels the strongest effective nuclear charge? (for its valence electrons) As O Ga O Ge D Question...

What is the volume of a ball that has an internal pressure of 2.8 atm, a temperature of 21 C, and contains 2.2 grams of O2? (Hint: Molar mass of O2 is 32.00 g/mol. Convert the grams of Oz to moles of ...

How many protons, electrons and neutrons in this mystery ion? 51 24 X O 24 protons, 24 electrons, 27 neutrons O 24 protons, 21 electrons, 27 neutrons O 27 protons, 24 electrons, 27 neutrons O 24 proto...

Is the rusting of a metal nail a physical or chemical change? Physical change O Chemical change D Question 2 1 pts What is 3.040*0.0002102? 6.39008*10-4 O 6.39 104 6.390*10-4 O 6.3901 104 D Question 3...

Even though E85 (85%) ethanol and 15% gasoline) has a significantly higher octane rating than regular or even premium gasoline, the energy content per gallon is less. This translates into fewer miles ...

Exercise 1: Construct a graph by using the following data for the volume and mass of an unknown solid. You may find it useful to make a graph of numerical information that you have obtained in the lab...

. x Self Assessment - Introduct x McGraw Hill Campus Lecture Notes - Chapter 1- X nova.edu x McGraw-Hill Education Can x A ALEKS - Aleksandra Filipovs' X + www-awa.aleks.com/alekscgi/x/Isl.exe/10_u-...

. In the following examples, identify which of the nuclei labelled in bold underline will be more deshielded than the other and explain why. a). CH30-CH2CH2CH3 b). H H O OH H H c). CH3CN (6 1.97) vs...

I need typed answer with explanation. A white light (693 nm) interacts with a blue glass at room temperature. The blue glass, (Ground state, Eo) absorbs red light, 1 653 nm, (Excited state, E, ) and y...

. 1) Which of the following best describes a theory? A) An 'if-then' statement that can be tested B) A model used to explain how/why a phenomenon occurs C) A unifying concept; used to describe the w...

. Complete the balanced neutralization equation for the reaction below: HNO,(aq) + Ba(OH),(aq) -. Complete the balanced neutralization equation for the reaction below: KOH(aq) + H,...

. The four sets of lines in the hydrogen emission spectrum are known as Balmer, Brackett, Paschen, and Lyman. For each series, assign the energy (infrared, ultraviolet, or visible), the ny value, an...