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WorksheetsConcentration terms-12
Total questions: 10
Worksheet time: 10mins
Name
Class
Date
1.
Molality (m) = moles of solute / _________________________.
a)
kilogram of solvent
b)
kiloliter of solvent
c)
kilometer of solvent
d)
ounces of solvent
2.
Molar mass of NaOH is ______________________
a)
40 grams/mol
b)
50 grams/mol
c)
45 grams/mol
d)
38 grams/nol
3.
How many moles of NaCl are present in a solution with a molarity of 8.59 M and a volume of 125 mL?
a)
1074 mol
b)
0.069 mol
c)
1.07 mol
d)
62.7 mol
4.
What is the molarity of a 0.5L sample of a solution that contains 60.0 g of sodium hydroxide (NaOH)
a)
0.8 M
b)
1.5M
c)
3.0M
d)
6.0M
5.
What is the molarity of 4 g of NaCl (MM=58.45) in 3,800 mL of solution?
a)
0.018 M
b)
0.0011 M
c)
1.052 M
d)
0.062 M
6.
What is the molarity of 3 mole of hydrochloric acid in 3 L of water.
a)
3
b)
1
c)
6
d)
9
7.
Molarity is measured in
a)
moles per kg
b)
mols per L
c)
moles per kJ
d)
moles per mL
8.
What is the molarity in 650. ml of solution containing 63 grams of sodium chloride?
a)
2.4 M
b)
0.86 M
c)
1.7 M
d)
0.54 M
9.
What is the unit of mole fraction
a)
gram
b)
Mole
c)
Mol/L
d)
Unitless
10.
What is the molality of a solution in which 3.0 moles of NaCl is dissolved in 1.5 Kg of water?
a)
2.0 M
b)
0.22 m
c)
135 m
d)
2.0m
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