6. This tells you the percentage of the mass made up by each element in
a compound.
b. Molecular formula
c.Empirical formula
d Percentage composition of substance d. Chemical formula
7. Which does not necessarily represent the actual numbers of atoms present in a molecule of a compound for it only represents the ratio
between those numbers?
a. Molecular formula b.Percentage composition
c.Empirical formula
d.Chemical formula
8. Which shows the actual numbers of atoms of each element that occur
in the smallest freely existing unit or molecule of the compound?
a. Chemical formula
b.Percentage composition
c.Empirical formula
d. Molecular formula
9.Limestone is found to contain 40% Can, 12%C and 48%O.Its molar mass is expermentally found to be 100 grams . What is it's empirical formula?
a.CaCO
b.CaC,2O
c.CaCO,2
d.CaCO,3
10. Sulfuric acid composes 2.04% H, 32.65% S and 65.31% 0. What is the
molecular formula if it has a molar mass of 98 grams??
a. H,2 SO,4
b. H ,2SO,3
c.HSO
d. HSO, 4​