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WorksheetsMolar Mass
Total questions: 15
Worksheet time: 40mins
Name
Class
Date
1.
How many particles are in a mole?
a)
602
b)
602 million
c)
602 moles
d)
6.02 x 1023
2.
What are the units for molar mass?
a)
grams
b)
moles
c)
grams/mole
d)
liters
3.
What is the molar mass of carbon?
a)
6 g/mol
b)
12 g/mol
c)
20 g/mol
d)
40 g/mol
4.
What is the molar mass of CO2(g)?
a)
12 g/mol
b)
16 g/mol
c)
32 g/mol
d)
44 g/mol
5.
Which compound has the smallest molar mass?
a)
CO
b)
CO2
c)
H2O
d)
H2O2
6.
Fluorine gas is diatomic. What is its molar mass?
a)
18.998 g/mol
b)
37.996 g/mol
c)
9 g/mol
d)
18 g/mol
7.
What is the molar mass of B2(CO3)3?
a)
81.632 g/mol
b)
94.842 g/mol
c)
38.822 g/mol
d)
201.648 g/mol
8.
Which has a greater mass: one mole of scandium or two moles of boron?
a)
scandium
b)
boron
c)
neither
d)
more information is needed.
9.
What is the mass of one mole of aluminum?
a)
24 g
b)
25 g
c)
26 g
d)
27 g
10.
What is the mass of 1.2 moles of IrI3?
a)
570 g
b)
688 g
c)
320 g
d)
957 g
11.
What is the mass of 1.8 mol of aluminum chloride?
a)
26.98 g
b)
62.43 g
c)
133.34 g
d)
240.01 g
12.
How many grams are in 3.62 mol of dicarbon tetroxide?
a)
88.0
b)
3.62
c)
319
d)
159
13.
Which of the following would have the highest mass?
a)
0.75 mol Co3(PO4)2
b)
20 mol CH4
c)
16.2 mol chlorine gas
d)
1.2 mol IrI3
14.
How many moles are in 17.0 g of water?
a)
16.94
b)
0.9403
c)
305.2
d)
1.063
15.
How many moles in a tablespoon (~12.5 g) of sugar (C12H22O11)?
a)
342.3
b)
0.0365
c)
27.38
d)
8.46
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