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Stoichiometry

Total questions: 10

Worksheet time: 8mins

Name
Class
Date
1.

How many grams are in 1 mole of O2?

a)

8

b)

16

c)

24

d)

32

2.

How many particles are in 1 mole?

a)

6.022 x 1023

b)

1.09 x 1023

c)

1.2 x 1024

d)

1.8 x 1024

3.

2H2 + O2 = 2H2O, If you react 3.0 moles of hydrogen, how many moles of oxygen are needed?

a)

1 mole

b)

1.5 moles

c)

2.0 moles

d)

2.5 moles

4.

How many liters are in 1 mole at STP?

a)

15.9

b)

22.4

c)

33.3

d)

40.0

5.

Ca + Cl2 = CaCl2, If you react 30.0 L of Cl2, how many grams of Ca are needed?

a)

20.0

b)

30.2

c)

40.1

d)

53.3

6.

___NaCl + ___Ca = ___CaCl2 + ___Na, what would the mole ratio be for NaCl to CaCl2?

a)

1:1

b)

1:2

c)

2:1

d)

1:3

7.

2Na + 2H2O = 2NaOH + H2 if you react 50.0 grams of sodium, how many grams of water are needed.

a)

25.0

b)

39.2

c)

46.7

d)

50.0

8.

___Fe + ___O2 = ___Fe2O3, what is the mole ratio between Fe and Fe2O3?

a)

1:1

b)

3:3

c)

2:4

d)

4:2

9.

2H2 + O2 = 2H2O If you react 20.0 L of hydrogen, how many grams of water are produced?

a)

8.00

b)

16.1

c)

24.5

d)

32.0

10.

2Na + Cl2 = 2NaCl If you have 3.00 moles of sodium and 1 mole of Cl2, which is limiting?

a)

Na

b)

Cl2

c)

NaCl

d)

none of the above