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Stoichiometry 1

Total questions: 8

Worksheet time: 1hrs 14mins

Name
Class
Date
1.
2H2   +   O2  →  2H2O
How many moles of water can be produced if 8 moles H2 are used?
a)
4 moles
b)
8 moles
c)
16 moles
d)
2 moles
2.
Using the following equation:
Fe2O3(s) + 3H2(g) → 2Fe(s) + 3H2O(l)
How many moles of iron can be made from 3 moles of Fe2O3?
a)
6 moles Fe
b)
4 moles Fe
c)
2 moles Fe
d)
1 moles Fe
3.

In the following reaction:

4 Al + 3 O2 –> 2 Al2O3

How many moles of aluminum would be needed to completely react with 45.0 grams of O2?

a)

1.05 moles

b)

3.75 moles

c)

0.875 grams

d)

1.88 moles

4.

How many moles of carbon dioxide are produced from the complete combustion of 1.10 x 102 g of CH4?

a)

13.7 mol

b)

2.75 mol

c)

6.11 mol

d)

6.85 mol

5.

Using the following reaction,

B2H6 + 3O2 -->2 HBO2 + 2 H2O

What mass of O2 will be needed to burn 36.10 g of B2H6?

a)

13.81 g O2

b)

125 g O2

c)

125.2 g O2

d)

108.3g

6.
Using the following equation:
4NH3(g) + 5O2(g) --> 4NO(g) + 6H2O(l)
How many grams of oxygen gas are needed to react with 56.8 grams of ammonia?
a)
45.08 g O2
b)
133.33 g O2
c)
260.77 g O2
d)
75.92 g O2
7.

Using the following equation:


Pb(SO4)2 + 4 LiNO3 → Pb(NO3)4 + 2 Li2SO4


How many atoms of lithium nitrate will be needed to make 2.50 x 103 grams of lithium sulfate?

a)

6.97 x 1023 g LiNO3

b)

2.79 x 1024 g LiNO3

c)

1.92 x 1024 g LiNO3

d)

2.8 x 1024 g LiNO3

8.

When 4.7 x 1011 atoms of sodium are put into excess water, how many grams of NaOH are made?

a)

1.13 x 1046 g NaOH

b)

3.12 x 10-11 g NaOH

c)

1.13 x 10-11 g NaOH

d)

6.02 x 1023 g NaOH