Mole Ratio Calculations

What is the mole ratio of H₂O to H₃PO₄ in the following chemical equation?   P₄O₁₀ + 6 H₂O --> 4 H₃PO₄ 

• 6:4

• 4:6

• 1:3

• 3:1

Mole ratios are obtained from the

• balanced chemical equation

• periodic table

• molar mass

Tags

NGSS.HS-PS1-7

Balance the equation below

C₂H₆ + O₂ --> CO₂ + H₂O

• 1:1:1:1

• 1:2:1:2

• 1:3:2:3

• 2:7:4:6

• 2:9:5:7

Tags

NGSS.HS-PS1-7

What is the ratio of ethane (C₂H₆) to water (H₂O)?

2C₂H₆ + 7O₂ --> 4CO₂ + 6H₂O

Pick TWO answers

• 2:6

• 1:2

• 1:3

• 1:4

• 2:4

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

• 1 mole

• 2 moles

• 4 moles

• 8 moles

Tags

DOK Level 2: Skill/Concept

In the equation 2 Al₂O₃ → 4 Al + 3 O₂, what is the mole ratio of aluminum to oxygen?

• 10:6 

• 3:4

• 4:3

• 2:3

Tags

NGSS.HS-PS1-7

• 2 moles

• 3 moles

• 6 moles

• 9 moles

Tags

DOK Level 3: Strategic Thinking

• 6 moles

• 3 moles

• 12 moles

• 4 moles

Tags

NGSS.HS-PS1-7

• 2.5 moles

• 5 moles

• 10 moles

• 15 moles

Tags

DOK Level 2: Skill/Concept

• 1 mole

• 2 moles

• 4 moles

• 8 moles

Tags

DOK Level 3: Strategic Thinking