Stoichiometry: Mass to Mass Problems

A student burns 66.17 g of C₃H₈ according to the following reaction:

C₃H₈ + 5O₂ → 3CO₂ + 4H₂O

How many grams of carbon dioxide are produced?

• 44.0 g

• 66.1 g

• 132 g

• 198 g

2Na + 2H₂O → 2NaOH+ H₂
How many grams of hydrogen are produced if 120 g of Na are available?

• 5.2 g
• 2.6 g
• 690 g
• 45 g

Tags

NGSS.HS-PS1-7

2H₂ + O₂ → 2H₂O

How many grams of water can be produced if 16.16 g of H₂ are used?

• 18.02 g

• 144.2 g

• 48.921 g

• 2 moles

Tags

NGSS.HS-PS1-7

What is the molar mass of water?

• 18.02 g/mole

• 17.01 g/ mole

• 33.01 g/mole

What is the molar mass of carbon?

• 16.00g/mole

• 14.89 g/mole

• 12.01 g/mole

• 6.00 g/mole