WorksheetsScience 10 Molar Mass Review
Total questions: 13
Worksheet time: 39mins
Name
Class
Date
1.
The mass of one mole of substance is called...
a)
molecular mass
b)
mole constant
c)
molar mass
d)
atomic weight
2.
Find the molar mass of H2
a)
1.01g
b)
2.02g
c)
1.02g
d)
2.01g
3.
Find the molar mass of CaCO3
a)
100.09g
b)
100g
c)
100.2g
d)
101g
4.
Find the molar mass of NaHCO3
a)
84g
b)
.8401g
c)
84.01g
d)
81.04g
5.
Find the number of moles in 45 grams of H2
a)
22.27mol
b)
22.28mol
c)
27.22mol
d)
28.22mol
6.
Find the number of moles in 100 grams of CaCO3
a)
1mol
b)
0.99mol
c)
0.1mol
d)
99mol
7.
Find the number of moles in 20 grams of NH3
a)
17.04mol
b)
1.17mol
c)
11.7mol
d)
17.03mol
8.
Find the number of grams of a substance that contains 2mol of H2
a)
1.01g
b)
4.04g
c)
1.02g
d)
2.01g
9.
Find the number of grams of a substance containing 2mol of NaHCO3
a)
84g
b)
84.01g
c)
168g
d)
168.02g
10.
Find the number of grams of a substance containing 3mol of NH3
a)
17.04g
b)
51.12g
c)
51.11g
d)
17.03g
11.
The molar mass of an element is equal to its...
a)
Atomic mass
b)
Atomic number
c)
Oxidation number
d)
Valence electrons
12.
How many particles are in a mole?
a)
602
b)
602 million
c)
602 moles
d)
6.02 x 1023
13.
How many water molecules are in 5.2 moles of water?
a)
6.02 x 1023
b)
5.2
c)
3.1304 x 1024
d)
8.638 x 10-24
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