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WorksheetsConcentration Calculations
Total questions: 10
Worksheet time: 22mins
Name
Class
Date
1.
What is the molarity of 2.5 mol of NaOH in 12.0 L of solution?
a)
0.21 M
b)
30 M
c)
4.8 M
d)
20.8 M
2.
What is the molality of a solution containing 1.3 mol in 13.4 kg of solution?
a)
9.7 m
b)
17.42 m
c)
0.097 m
3.
What is the molarity of 122.5 g of AlCl3 in 1.0 L of solution?
a)
1.225 M
b)
0.92 M
c)
0.1225 M
4.
What is the molality of 1.2 g of HCl in 750 g of solution?
a)
0.04 m
b)
0.00004 m
c)
0.0016 m
5.
What is the concentration, in percent by mass, of 0.62 g of solute in 45.0 g of solution?
a)
0.014 %
b)
1.4 %
c)
0.13%
6.
What is the concentration, in percent by volume, of 15.3 mL of solute in 2.65 L of solution?
a)
0.58%
b)
0.0058%
c)
5.8%
7.
What mass of solute is needed to make 75.0 g of a 3.4% solution?
a)
2.55 g
b)
22 g
c)
0.05 g
8.
What is the volume of solution needed to make a 3.5% by volume solution using 2.0mL of solvent?
a)
57 mL
b)
0.57 mL
c)
7 mL
9.
What is the mole fraction of ethanol when 0.504 mol of ethanol are mixed with 4.06 mol of water?
a)
0.110
b)
0.124
c)
0.097
10.
What is the mole fraction of MgF2 in a solution that has 0.321 mol of MgF2 dissolved in 4.44 mol of water?
a)
0.0674
b)
0.0722
c)
1.425
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