Chemistry: Quiz: Stoichiometry

1. Stoichiometric compounds have

a. random numbers of atoms

b. ten atoms

c. integral atomic ratios

2. How many moles of lithium are in 100.0 g of lithium?

a. 14.41 moles Li

b. 694.0 moles Li

c. 33.33 moles Li

3. The compound sodium chloride, NaCl, is

a. 60.66% Na and 39.34% Cl

b. 39.34% Na and 60.66% Cl

c. 50.00 % Na and 50.00% Cl

4. A compound that is 70.92% K and 29.08% S is

a. KS

b. KS₂

c. K₂S

5. Which of the following compounds is 36.86% N?

a. NO₂

b. N₂O₃

c. N₂O₅

Quiz: Stoichiometry