WorksheetsSolutions
Total questions: 40
Worksheet time: 2hrs 39mins
Name
Class
Date
1.
The other component of a solution is the part that does the dissolving. What is the name of this component?
a)
solvent
b)
solution
c)
solute
d)
oxidation
2.
A solution consists of two parts. One part is the substance that is dissolved. What is the name of this part of a solution?
a)
solvent
b)
solution
c)
solute
d)
oxygen
3.
When two liquids mix, they are said to be....
a)
insoluble
b)
miscible
c)
soluble
d)
immiscible
4.
When a substance can dissolve in another substance, it is said to be..
a)
soluble
b)
insoluble
c)
miscible
d)
immiscible
5.
Changing the temperature and pressure affects which of the following?
a)
the concentration of an unsaturated solution
b)
the polarity of the solvent needed to dissolve a solute
c)
the solubility of a solute in a particular solvent
d)
none of these
6.
The solubility of gases is lower in ___ temperatures
a)
constant
b)
higher
c)
lower
d)
absolute zero
7.
A beaker containing 80 grams of lead(II) nitrate, Pb(NO3)2, in 100 grams of water has a temperature of 30 ºC. Approximately how many grams of the salt are undissolved, on the bottom of the beaker?
a)
20 grams
b)
80 grams
c)
66 grams
d)
14 grams
8.
Which salt is LEAST soluble at 0 ºC?
a)
K2Cr2O7
b)
KNO3
c)
KClO3
d)
Ce2(SO4)3
9.
How many grams of sodium nitrate, NaNO3, are soluble in 100 g of water at 10 ºC?
a)
80 grams
b)
100 grams
c)
40 grams
d)
10 grams
10.
When 50 grams of potassium chloride, KCl, is dissolved in 100 grams of water at 50 ºC, the solution can be correctly described as:
a)
supersaturated
b)
unsaturated
c)
saturated
11.
At approximately what temperature does the solubility of sodium chloride, NaCl, match the solubility of potassium dichromate, K2Cr2O7?
a)
60 ºC
b)
30 ºC
c)
50 ºC
d)
83 ºC
12.
Which of these salts decreases in solubility as the temperature increases.
a)
Ce2(SO4)3
b)
KClO3
c)
K2Cr2O7
d)
KNO3
13.
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.
14.
Graph that shows the amount of solute that can be dissolved in 100 g of water at a certain temperature.
a)
Solubility curve
b)
Saturation curve
c)
Concentration curve
d)
Molarity curve
15.
Solution where more solute can still be dissolved at the given temperature.
a)
Saturated
b)
Unsaturated
c)
Supersaturated
d)
Homogeneous solution
16.
Which of the following usually makes a substance dissolve faster in a solvent?
a)
agitating the solution
b)
increasing the particle size of the solute
c)
lowering the temperature
d)
decreasing the number of particles
17.
What are two factors that affect solubility?
a)
pH scale
b)
Mole/G
c)
all of the above
d)
Temperature and they type of solvent
18.
When the pressure of a solution is raised, the solubility of the gas ___.
a)
remains constant
b)
decreases
c)
increases
d)
pressure has no effect on solubility
19.
Which of the following usually makes a substance dissolve faster in a solvent?
a)
agitating the solution
b)
increasing the particle size of the solute
c)
lowering the temperature
d)
decreasing the number of particles
20.
What is the molar concentration of a 100 mL aqueous solution that contains 1.00 g KCl?
a)
1.34 M KCl
b)
0.134 M KCl
c)
0.0134 M KCl
d)
0.00134 M KCl
21.
If the temperature stays the same, the solubility of gases in liquids
a)
increases with increasing pressure
b)
cannot reach equilibrium
c)
decreases with increasing pressure
d)
does not depend on pressure
22.
Which does not affect the rate at which a solid solute dissolves?
a)
the vapor pressure of the solvent
b)
the temperature of the solvent
c)
the surface area of the solid
d)
the speed at which the solution is stirred
23.
Which will dissolve the slowest
a)
powdered sugar in hot water
b)
Powdered sugar in cold water
c)
sugar cubes in hot water
d)
sugar cubes in cold water
24.
Which of the following will produce crystals if disturbed?
a)
saturated solutions
b)
colloids
c)
supersaturated solutions
d)
unsaturated solutions
25.
Amount of solute in a given amount of solvent or solution
a)
Concentration
b)
Miscible
c)
Solute
d)
solubility
26.
A student adds 6.00 g of a solid to 30.0 g of water. What is the concentration of this solution expressed as percent by mass?
a)
0.167%
b)
0.200%
c)
16.7%
d)
20.0%
27.
What is a solution called where more amount of solute CAN BE dissolved at a specific temperature and pressure?
a)
Supersaturated
b)
Saturated
c)
Unsaturated
d)
Undefined
28.
When the solution is holding more solute than its maximum (by raising the temperature saturating the solution and then lowering the temperature) it is said to be
a)
Supersaturated
b)
Saturated
c)
Unsaturated
d)
Undefined
29.
A beaker containing 80 grams of lead(II) nitrate, Pb(NO3)2, in 100 grams of water has a temperature of 30 ºC. Approximately how many grams of the salt are undissolved, on the bottom of the beaker?
a)
20 grams
b)
80 grams
c)
66 grams
d)
14 grams
30.
The component of a solution that is that is being dissolved
a)
solvent
b)
solution
c)
solute
d)
unsaturated
31.
A solution that contains less solute than a saturated solution
a)
unsaturated solution
b)
saturated solution
c)
supersaturated solution
32.
A solution that contains the maximum amount of dissolved solute
a)
unsaturated solution
b)
supersaturated solution
c)
saturated solution
33.
The amount of solute that can dissolve in a given amount of solvent at a given temperature
a)
saturated solution
b)
solubility
c)
pure substance
d)
colloid
34.
The substance that dissolves the solute
a)
solution
b)
solvent
c)
saturation
35.
A solution that contains more dissolved solute than a saturated solution
a)
unsaturated solution
b)
solubility
c)
supersaturated solution
36.
To determine the molarity of an HCl solution, you need to know the number of:
a)
g of HCl in 100000 g of solution
b)
moles of HCl dissolved in the total moles of solution
c)
moles of HCl in 1 L of solution
d)
moles of HCl dissolved in 1 kg of solvent
37.
What is the molarity of a solution that contains 0.202 mol KCl in 7.98 L of solution
a)
0.0132 M KCl
b)
0.0253 M KCl
c)
0.459 M KCl
d)
1.36 M KCl
38.
What is the molar concentration of a solution that contains 125 g NaCl in 4.00 L of solution?
a)
0.535 M NaCl
b)
2.14 M NaCl
c)
8.56 M NaCl
d)
31.3 M NaCl
39.
Which of the following is soluble in water?
a)
potassium nitrate
b)
silver
c)
carbon tetrachloride
d)
benzene (C6H6)
40.
When 20 grams of potassium chlorate, KClO3, is dissolved in 100 grams of water at 80 ºC, the solution can be correctly described as:
a)
supersaturated
b)
saturated
c)
unsaturated
100 %
