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WorksheetsSolutions Test Review
Total questions: 22
Worksheet time: 2hrs 58mins
Name
Class
Date
1.
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
2.
What is the molar mass of NaOH?
a)
39.997 g/mol
b)
38.989 g/mol
c)
23.998 g/mol
d)
57.004 g/mol
3.
What is the molar mass of Ca(OH)2 to the ones place?
a)
58
b)
74
c)
329
d)
1360
4.
What is the molar mass of NH4NO3
a)
64.05 g/mol
b)
80.05 g/mol
c)
48.05 g/mol
d)
79.04 g/mol
5.
Describe an unsaturated solution
a)
Solvent can dissolve more solute
b)
Solvent cannot dissolve more solute
c)
Solute can start dissolving
d)
Solute can dissolve like substances
6.
Carbon dioxide dissolved in soda is an example of which solute-solvent combination?
a)
gas-air
b)
liquid-gas
c)
gas-liquid
d)
liquid-air
7.
Which of the following does not effect the rate of dissolution?
a)
temperature
b)
agitation
c)
speed
d)
surface area
8.
Which of the following would have the slowest rate of dissolution?
a)
a sugar cube in hot water
b)
a sugar cube in cool water
c)
powdered sugar in cool water
d)
powdered sugar in hot water
9.
Which of the following would have the fastest rate of dissolution?
a)
a sugar cube in hot water
b)
a sugar cube in cool water
c)
powdered sugar in hot water
d)
powdered sugar in cool water
10.
The "like dissolves like" rule is the reason why water cannot dissolve
a)
salt
b)
sugar
c)
vinegar
d)
oil
11.
The rule that refers to polar molecules dissolving polar and nonpolar dissolving nonpolar is
a)
this dissolves that
b)
like dissolves like
c)
same dissolves same
d)
here dissolves there
12.
Molarity is measured in
a)
mols per kg
b)
mols per L
c)
mols per kJ
d)
mols per mL
13.
Moles per liter is the unit used for measuring
a)
enthalpy
b)
effervescence
c)
molarity
d)
molality
14.
What is the molarity of a solution that contains 0.3 moles sugar in 2.5 liters of solution?
a)
8.33 m
b)
0.12 m
c)
0.12 M
d)
8.33 M
15.
What is the molarity of 4 grams of sodium chloride in 3.8 liters of solution?
a)
0.018 M
b)
0.018 m
c)
1.052 M
d)
1.052 m
16.
How many moles of Na2SO4 is needed to make 2.5 L of 2.0 M solution?
a)
5 moles
b)
1 moles
c)
1.25 moles
d)
0.80 moles
17.
What are the units for molar mass?
a)
grams
b)
amu
c)
grams/mole
d)
liters
18.
Fluorine is diatomic. What is the molar mass of fluorine gas?
a)
18.998 g/mol
b)
37.996 g/mol
c)
9 g/mol
d)
18 g/mol
19.
What is the mass of one mole of aluminum?
a)
26.982 g
b)
13 g
c)
53.985 g
d)
14 g
20.
What is the molar mass of table salt (NaCl)?
a)
116.886 g/mol
b)
35.453 g/mol
c)
22.990 g/mol
d)
58.443 g/mol
21.
How does a solution become supersaturated?
a)
dissolve lots of solute in it.
b)
dissolve a little solute in it.
c)
dissolve more solute than you should be able to.
d)
dissolve a super amount of solvent in it.
22.
What is the molarity of a solution produced when 45 grams of Na2SO4 is dissolved in 5.8 L? First you must convert to moles. Then find the molarity.
a)
7.76 M
b)
0.45 M
c)
0.055M
d)
5.45M
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