Mole to Mass Conversions (#1)

For question (a), what is the given?

• 2.8 moles of propane

• moles of oxygen gas

• 2.8 moles of carbon dioxide

For question (a), what is the ending unit (unknown)? What are we looking for in this problem?

• grams of CO2

• moles of O2

• moles of propane

What should we use to change from moles of C₃H₈ to moles of CO₂?

• mole ratio

• molar mass

• molar measurement

What is the correct balanced equation for this reaction?

• 1  C₃H₈ +  5  O₂  --> 3  CO₂  +  4 H₂O

• 1  C₃H₈ +  4  O₂  -->  3  CO₂  +  2 H₂O

• 1  C₃H₈ +  6  O₂  --> 3  CO₂  +  4 H₂O

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

Based on the balanced equation, what is the correct mole ratio of C₃H₈ to CO₂?

• 1 mole C₃H₈  :  3 moles CO₂

• 3 mole C₃H₈  :  3 moles CO₂

• 1 mole C₃H₈  :  4 moles CO₂

• 5 mole C₃H₈  :  4 moles CO₂

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

What is the molar mass of CO₂?

• 44.01 grams

• 28.01 grams

• 56.02 grams

Grab a calculator. What is the answer to this question? 

• 369.68 grams CO₂

• 150.04 grams CO₂

• 70.68 grams CO₂