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Worksheets

One Step Molar Conversions

Total questions: 10

Worksheet time: 12mins

Name
Class
Date
1.

What is the molar mass of water (H2O)?

a)

16.0 g/mol

b)

22.9 g/mol

c)

20.0 g/mol

d)

18.0 g/mol

2.

How many grams are in 2 moles of carbon (C)?

a)

12.0 grams

b)

24.0 grams

c)

36.0 grams

d)

48.0 grams

3.

What is the molar mass of calcium chloride (CaCl2)?

a)

56.4 g/mol

b)

79.0 g/mol

c)

111.0 g/mol

d)

90.3 g/mol

4.

How many moles are in 25 grams of sodium (Na)?

a)

2.5 moles

b)

1.08 moles

c)

0.5 moles

d)

0.25 moles

5.

What is Avogadro's number?

a)

10

b)

3.1416

c)

1000

d)

6.022 x 1023

6.

How many atoms are in 3 moles of oxygen (O2)?

a)

9 x 1057

b)

1.81 x 1024

c)

3 x 1024

d)

6 x 1010

7.

What is the molar mass of sulfuric acid (H2SO4)?

a)

120.2 g/mol

b)

32.1 g/mol

c)

64.1 g/mol

d)

98.1 g/mol

8.

How many grams are in 0.5 moles of magnesium (Mg)?

a)

12.15 grams

b)

24.31 grams

c)

6.08 grams

d)

18.23 grams

9.

How many moles are in 100 grams of potassium (K)?

a)

2.56 moles

b)

50 moles

c)

10 moles

d)

0.5 moles

10.

What is the molar mass of ammonia (NH3)?

a)

17.0 g/mol

b)

12.0 g/mol

c)

26.0 g/mol

d)

30.5 g/mol