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WorksheetsThe Mole
Total questions: 15
Worksheet time: 15mins
Name
Class
Date
1.
Calculate the mass of 5 mol of iron atoms.
a)
5
b)
56
c)
130
d)
280
2.
Calculate the mass of 2.4 x 1024 atoms of carbon.
a)
3.4
b)
4
c)
12
d)
48
3.
Calculate the mass of 3 x 1023 atoms of potassium.
a)
2
b)
3
c)
78
d)
117
4.
Calculate the number of moles of atoms in 4.6 g of sodium.
a)
0.1
b)
0.2
c)
0.3
d)
0.4
5.
Calculate the number of moles of atoms in 1.5 x 1023 atoms of calcium.
a)
0.25
b)
0.5
c)
0.75
d)
1
6.
Calculate the mass of 2 mol of methane.
a)
2
b)
8
c)
16
d)
32
7.
Calculate the mass of 4 mol of chlorine molecules.
a)
4
b)
35.5
c)
142
d)
284
8.
Calculate the mass of 0.2 mol of sulfuric acid.
a)
20
b)
50
c)
100
d)
150
9.
Calculate the number of moles of carbon dioxide contained in 11g of CO2.
a)
0.25
b)
0.5
c)
11
d)
44
10.
Calculate the number of moles copper (II) sulfate in 320g of CuSO4.
a)
2
b)
4
c)
6
d)
8
11.
How many moles of H atoms are there in 0.5 mol of HCl ?
a)
0.1
b)
0.25
c)
0.5
d)
1
12.
How many moles of H atoms are there in 0.5 mol of H2SO4 ?
a)
0.25
b)
0.5
c)
0.75
d)
1
13.
X forms an ionic compound with the formula XCl and an Mr of 74.5. What is the Mr of the oxide of X?
a)
55
b)
71
c)
87
d)
94
14.
How many moles of ions are present in 142g of sodium sulfate?
a)
1
b)
2
c)
3
d)
6
15.
An analysts found 0.6g of dissolved chlorine in a sample of polluted water. How many chlorine molecules are there in the sample?
a)
1x1022
b)
5x1021
c)
5 x 1023
d)
6.02 x 1023
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