Mole Ratio Calculations

Given the reaction What is the total number of moles of needed to react completely with 2 moles of ?

• 0.5

• 1

• 2

• 4

Tags

NGSS.HS-PS1-7

What volume of nitrogen is necessary to react completely with 50.00 L of hydrogen?

• 25.00 L

• 20.84 L

• 19.00 L

• 16.67 L

Mole Ratios used for conversions are derived from:

• the molar mass of the reactants in the balanced chemical equation

• the coefficients of the balanced chemical equation

• the subscripts of the products in the balanced chemical equation

• the group number of each element in the balanced chemical equation

2 C₂H₆ + 7 O₂ → 4 CO₂ + 6 H₂O

Ethane (C₂H₆) combusts in the above reaction. What is the mole ratio of ethane to oxygen gas?

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• 

2 C₂H₆ + 7 O₂ → 4 CO₂ + 6 H₂O

Ethane (C₂H₆) combusts in the above reaction. What is the mole ratio of carbon dioxide to water?

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• 
• 
• 

Tags

NGSS.MS-PS1-5

N₂ +  3H₂ → 2NH₃ 
What is the mole ratio between Nitrogen and Ammonium in the above reaction?

• 1 moles NH₃ / 2 moles N₂ 

• 3 moles NH₃ / 1 moles N₂ 

• 2 moles N₂ / 2 moles NH₃ 

• 1 moles N₂ / 2 moles NH₃ 

What is the ratio of Na₂S to Na?

• 1:1

• 1:2

• 2:1

• 2:2

What is the mole ratio of water to oxygen?

• 4/4

• 4/5

• 6/4

• 6/5

Tags

NGSS.MS-PS1-5

What is the mole ratio of P₄ to O₂?

• 1:3

• 1:2

• 3:2

• 3:1

What is the mole ratio of NaCl to Ca₃(PO₄)₂?

• 1:6

• 6:1

• 2:3

• 3:2

Tags

NGSS.HS-PS1-7