Mastering Mole Ratios in Chemical Reactions

Mastering Mole Ratios in Chemical Reactions

Assessment

Interactive Video

Chemistry, Science, Mathematics

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

This video tutorial explains the concept of mole ratios in chemical reactions. It begins with a reaction between nitrogen and hydrogen to form ammonia, demonstrating how to balance equations and calculate mole ratios. The tutorial then covers a reaction between propane and oxygen, showing how to determine the amount of oxygen needed to produce a specific amount of water. Finally, it discusses a reaction between ammonia and oxygen, explaining how to balance the equation and calculate the moles of oxygen and water involved.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the mole ratio of nitrogen gas to ammonia in the balanced equation?

1:2

2:3

1:3

3:2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If you have 1.5 moles of nitrogen gas, how many moles of hydrogen gas are needed?

1.5 moles

6.0 moles

3.0 moles

4.5 moles

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the balanced chemical equation for the reaction of propane with oxygen gas?

C3H8 + 5O2 → 3CO2 + 4H2O

C3H8 + 4O2 → 3CO2 + 4H2O

C3H8 + 6O2 → 3CO2 + 4H2O

C3H8 + 5O2 → 2CO2 + 4H2O

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many moles of oxygen are required to produce 14 moles of water?

12.5 moles

17.5 moles

15.0 moles

20.0 moles

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the mole ratio of oxygen to water in the reaction of propane with oxygen?

4:3

3:4

4:5

5:4

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the reaction of propane with oxygen, how many moles of carbon dioxide are produced from 1 mole of propane?

2 moles

3 moles

5 moles

4 moles

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the reaction of ammonia with oxygen, what is the mole ratio of ammonia to oxygen?

3:2

4:3

3:4

2:3

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