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Mole Ratio Practice

Authored by Heather Pedraza

Chemistry

9th - 12th Grade

NGSS covered

Used 28+ times

Mole Ratio Practice
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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

1 moles NH3 / 2 moles N2 

2 moles NH3 / 1 moles N2 

2 moles N2 / 3 moles NH3 
1 moles N2 / 3 moles NH3 

Tags

NGSS.HS-PS1-7

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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.HS-PS1-7

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

2 C2H6 + 7 O2 → 4 CO2 + 6 H2O

A problem asks how many moles of oxygen gas are needed to react completely with 6 moles of ethane (C2H6). What is the first step in setting up the problem?

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Tags

NGSS.HS-PS1-7

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

H2+Cl2-->2HCl
What is the total number of moles of HCl produced when 3 moles of H2 is completely consumed?

5
2
3
6

Tags

NGSS.HS-PS1-7

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

4NH3 + 5O2-->4NO + 6H2O
What is the total number of moles of NO produced when 1 mole of O2 is completely consumed?

1
1.2
0.8
4

Tags

NGSS.HS-PS1-7

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

4NH3 + 5O2-->4NO + 6H2O
What is the total number of moles of H2O produced when 12 mole of NH3 is completely consumed?

15
18
20
24

Tags

NGSS.HS-PS1-7

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