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Mole to Mole Conversions Quiz

Total questions: 17

Worksheet time: 1hrs 19mins

Name
Class
Date
1.

2Fe (s) + 3Cl₂ (g) ---> 2FeCl₃

How many moles of Iron (Fe) are required to react with 3 moles of chlorine gas (Cl₂)?

a)

2 moles of Fe.

b)

1 mole of Fe.

c)

3 moles of Fe.

d)

4 moles of Fe.

2.

4Cr + 3O₂ ---> 2Cr₂O₃

How many moles of oxygen gas (O₂) are required to react with 4 moles of chromium (Cr)?

a)

3 moles of O₂.

b)

2 moles of O₂.

c)

4 moles of O₂.

d)

5 moles of O₂.

3.

4Cr + 3O₂ ---> 2Cr₂O₃

How many moles of oxygen (O2) are required to react with 8 moles of chromium (Cr)?

a)

6 moles of O₂.

b)

4 moles of O₂.

c)

8 moles of O₂.

d)

10 moles of O₂.

4.

2NaClO₃ (aq) ---> 2NaCl (aq) + 3O₂ (g)

How many moles of sodium chloride (NaCl) are produced if 2 moles of sodium chlorate (NaClO₃) react?

a)

2 moles of NaCl.

b)

1 mole of NaCl.

c)

3 moles of NaCl.

d)

No NaCl is produced.

5.

2Na (s) + 2H₂O (l) ---> 2NaOH (aq) + H₂ (g)

How many moles of hydrogen (H2) gas are produced if 4 moles of sodium (Na) react?

a)

2 moles

b)

1 mole

c)

4 moles

d)

8 moles

6.

P₄ (s) + 5O₂ (g) ---> 2(P₂O₅)

How many moles of Phosphorus (P) are required to react with 10 moles of oxygen gas (O2)?

a)

4 moles

b)

2 moles

c)

5 moles

d)

6 moles

7.

CH4 (g) + 2O2 (g) → CO2 (g) + 2H2O (l)

If you have 3 moles of methane (CH₄), how many moles of oxygen (O₂) are required for complete combustion?

a)

6 moles

b)

3 moles

c)

9 moles

d)

12 moles

8.

CaCO₃ (s) → CaO (s) + CO₂ (g)

If you start with 5 moles of calcium carbonate (CaCO₃), how many moles of calcium oxide (CaO) will be produced?

a)

5 moles

b)

4 moles

c)

6 moles

d)

10 moles

9.

N2 + 3H2 → 2NH3

If you have 2 moles of nitrogen (N₂), how many moles of ammonia (NH₃) can be produced?

a)

1 mole

b)

2 moles

c)

3 moles

d)

4 moles

10.

4 FeCr2O7 + 8 K2CO3 + 1 O2 --->  2 Fe2O3 + 8 K2CrO4 + 8 CO2

How many moles of FeCr2O7 are required to produce 44 moles of CO2?

a)

20 mol of FeCr2O7

b)

80 mol of FeCr2O7

c)

22 mol of FeCr2O7

d)

88 mol FeCr2O7

11.

4 FeCr2O7 + 8 K2CO3 + 1 O2 --->  2 Fe2O3 + 8 K2CrO4 + 8 CO2

If 309 moles of FeCr2O7 react, how many moles of O2 will be consumed?

a)

70 mol of O2

b)

77 mol of O2

c)

309 mol of O2

d)

1,236 mol of O2

12.

S + O2 --->  SO2

How many moles of sulfur must be burned to give 0.567 moles of SO2?

a)

0 mol of S

b)

0.90 mol of S

c)

0.567 mol of S

d)

0.45 mol of S

13.

6 NaOH + 2 Al --->  2 Na3AlO3 + 3 H2

How many moles of aluminum (Al) are required to produce 4 moles of hydrogen (H2)?

a)

2.6 mol of Al

b)

5.3 mol of Al

c)

8 mol of Al

d)

4 mol of Al

14.

6 NaOH + 2 Al --->  2 Na3AlO3 + 3 H2

How many moles of Na3AlO3 can be formed from 7.24 moles of NaOH?

a)

5.89 mol of Na3AlO3

b)

9.5 mol of Na3AlO3

c)

21.72 mol of Na3AlO3

d)

2.41 mol Na3AlO3

15.

6 NaOH + 2 Al --->  2 Na3AlO3 + 3 H2

How many moles of NaOH are required to produce 3.5 moles of hydrogen (H2)?

a)

9 mol of NaOH

b)

3 mol of NaOH

c)

7 mol of NaOH

d)

10 mol of NaOH

16.

4 FeCr2O7 + 8 K2CO3 + 1 O2 —> 2 Fe2O3 + 8 K2CrO4 + 8 CO2

How many moles of O2 are required to produce 107.9 moles of Fe2O3

a)

53.95 mol O2

b)

107.9 mol O2

c)

90.4 mol O2

d)

75.5 mol O2

17.

6 NaOH + 2 Al —> 2 Na3AlO3 + 3 H2

How many moles of hydrogen (H2) can be prepared from 6.9 moles of aluminum (Al)?

a)

12.6 moles Al

b)

9.7 moles Al

c)

10.35 moles Al

d)

7.3 moles Al