9.1: Mole-Mole Conversions

Multiple Choice

What is the molar mass of Cl₂?

• 17 g/mol

• 35.5 g/mo;

• 71.0 g/mol

• 89 g/mol

Multiple Choice

How many moles of hydrogen are needed to react with 2 moles of nitrogen?

N₂ +  3 H₂ → 2 NH₃ 

• 6

• 2

• 3

• 1

Multiple Choice

Balance the reaction.

How many moles of iron can be made from 6 moles H₂? 

Fe₂O₃ + H₂ → Fe + H₂O

• 4 moles Fe

• 6 moles Fe

• 9 moles Fe

• 2 moles Fe