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Moles and mass review

Total questions: 6

Worksheet time: 30mins

Name
Class
Date
1.

What is the molar mass of Al2O3?

a)

42.981 g/mol

b)

69.963 g/mol

c)

101.961 g/mol

d)

74.979 g/mol

2.

What is the molar mass for (NH4)2O?

a)

34.038 g/mol

b)

52.077 g/mol

c)

50.037 g/mol

d)

18.034 g/mol

3.

What is the molar mass of copper (II) nitrate?

a)

187.554 g/mol

b)

251.1 g/mol

c)

189.096 g/mol

d)

125.55 g/mol

4.

How many grams are in 2 mol of CuCl2?

a)

2 g

b)

134.446 g

c)

268.892 g

d)

67.223 g

5.

How many moles are 95 g of NaCl?

a)

1.63 mol

b)

0.62 mol

c)

5551.8 mol

d)

58.44 mol

6.

How many moles is 125 g of CH4?

a)

2005.375 mol

b)

0.128 mol

c)

16.043 mol

d)

7.79 mol