MOLE GAME

MOLAR MASS

100

What is the molar mass of oxygen gas?

32 grams per mole

200

What is the molar mass for BP?

41.7855 grams per mole

300

What is the molar mass of magnesium sulfide?

56.38 grams per mole

400

What is the molar mass of CaCO3?

100.0869 grams per mole

500

What is the molar mass of calcium chloride?

110.98 grams per mole

MOLES TO GRAM

100

How many grams are in 5 moles of hydrogen gas?

10.08 grams

200

How many grams are in 3.2 moles of Helium?

12.80 grams

300

How many grams are in 7 moles of MgCl2?

666.477 grams

400

How many grams are in 9 moles of aluminium phosphide?

521.6 grams

500

How many grams are in 6.3 moles of carbon dioxide?

277.3 grams

GRAMS TO MOLES

100

How many moles are in 35 grams of sodium?

1.522 moles

200

How many moles are in 3.9 grams of calcium?

0.097 moles

300

how many moles are in 327 grams of magnesium sulfide?

5.80 moles

400

how many moles are in 560 grams of boron arsenide?

6.53 moles

500

How many moles are in 888 grams of calcium chloride? 

8 moles

PERCENT COMPOSITION

100

What is the formula for percent composition? 

part/whole x 100

200

H₂O has a gram formula mass of 18.02 g/mol. What is the percent composition of oxygen in water?

88.79%

300

FeBr₂ has a molar mass of 215.65 g/mol. What is the percent composition of bromine in the compound?

74.06%

400

What is the percent composition of oxygen in CaPO₄?

41.29%

500

What is the percent composition of sulfur in Al₂(SO₄)₃?

28.11%

MOLECULAR/EMPIRICAL

100

The simplest whole number ratio of an atom is its 

empirical formula

200

The actual composition of atoms in a formula is called its

molecular formula

300

Which below is an empirical formula? 

a. C₂H₄

b. P₄O₁₀

c. NH₃

d. C₃H₆

c. NH₃

400

How is a structural formula different from a molecular formula? 

Structural shows the arrangement of atoms. 

500

Determine the molecular formula for a compound that has the empirical formula CH₂O and a molar mass of 120 g/mol.

C₄H₈O₄