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Alhussan Chemistry — Stage 8

Chapter 7: Inside Atoms

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Chapter 8: Pure Substances and Solutions

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Chapter 9: Chemical Reactions 2

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Chemistry 8.7 Solubility — Quiz

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  • Questions count: 143
  • Passing grade: B+
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1.
For most solids, how does solubility change as temperature rises?
It stays the same
It increases
It becomes zero
It decreases
2.
How does the solubility of gases change as temperature rises?
It stays the same
It decreases
It doubles
It increases
3.
Why do warm lakes hold less oxygen for fish?
Warm water has no oxygen ever
Fish use more salt
Oxygen freezes
Gases are less soluble at higher temperatures
4.
Which statement is correct?
Gases dissolve better in warm water.
Cooling a saturated solution makes gas.
Stirring makes dissolving faster but does not change solubility.
Stirring increases solubility.
5.
Which statement is correct?
Cooling a saturated solution makes gas.
For most solids solubility increases with temperature.
Saturated solutions can dissolve more.
Salt solubility rises sharply with temperature.
6.
Which statement is correct?
All solids become less soluble when hot.
Gases dissolve better in warm water.
Stirring increases solubility.
Cooling a saturated solution forms crystals.
7.
Which statement is correct?
Saturated solutions can dissolve more.
To compare solubility use the same temperature.
Cola has 400 g of sugar per can.
Warm water holds more oxygen.
8.
Which statement is correct?
All solids become less soluble when hot.
Stirring increases solubility.
Salt is more soluble than sugar.
Sugar is more soluble than salt.
9.
Which statement is correct?
Saturated solutions can dissolve more.
Salt is more soluble than sugar.
Salt solubility rises sharply with temperature.
Fish need oxygen dissolved in water.
10.
Which statement is correct?
Cola has 400 g of sugar per can.
Cooling a saturated solution makes gas.
Fizzy drinks go flat faster when warm.
Solubility is per litre of solution.
11.
Which statement is correct?
Warm water holds more oxygen.
Salt is more soluble than sugar.
A 330 cm³ can of cola contains about 40 g of sugar.
Gases dissolve better in warm water.
12.
Which statement is correct?
Warm water holds more oxygen.
Salt's solubility changes little with temperature.
Solubility is per litre of solution.
Gases dissolve better in warm water.
13.
Which statement is NOT correct?
Cooling a saturated solution makes gas.
Salt's solubility changes little with temperature.
Honey is a very concentrated sugar solution.
Gases are less soluble in warm water.
14.
Which statement is NOT correct?
Every substance has its own solubility.
A saturated solution can dissolve no more.
Gases dissolve better in warm water.
Stirring makes dissolving faster but does not change solubility.
15.
Which statement is NOT correct?
Sugar is more soluble than salt.
Salt solubility rises sharply with temperature.
Honey is a very concentrated sugar solution.
Solubility is measured in g per 100 g of water.
16.
Which statement is NOT correct?
An unsaturated solution can still dissolve more.
All solids become less soluble when hot.
Sand has a solubility of almost zero g.
Potassium nitrate solubility rises sharply with temperature.
17.
Which statement is NOT correct?
A solubility curve shows solubility against temperature.
Cola has 400 g of sugar per can.
Potassium nitrate solubility rises sharply with temperature.
Stirring makes dissolving faster but does not change solubility.
18.
Which statement is NOT correct?
Sand has a solubility of almost zero g.
Salt's solubility changes little with temperature.
Stirring increases solubility.
For most solids solubility increases with temperature.
19.
Which statement is NOT correct?
Salt is more soluble than sugar.
Cooling a saturated solution forms crystals.
An unsaturated solution can still dissolve more.
Extra sugar in a saturated solution falls to the bottom.
20.
Which statement is NOT correct?
A solubility curve shows solubility against temperature.
Solubility is per litre of solution.
Every substance has its own solubility.
Potassium nitrate solubility rises sharply with temperature.
21.
Which statement is NOT correct?
Extra sugar in a saturated solution falls to the bottom.
Warm water holds less dissolved oxygen.
Warm water holds more oxygen.
Every substance has its own solubility.
22.
True or false? A warm fizzy drink goes flat faster than a cold one.
True
False
23.
True or false? Warm water holds less dissolved oxygen.
True
False
24.
True or false? Fizzy drinks go flat faster when warm.
True
False
25.
True or false? An unsaturated solution can still dissolve more.
True
False
26.
True or false? For most solids solubility increases with temperature.
True
False
27.
True or false? Extra sugar in a saturated solution falls to the bottom.
True
False
28.
True or false? Solubility is measured in g per 100 g of water.
True
False
29.
True or false? Sand has a solubility of almost zero g.
True
False
30.
True or false? More than 200 g of sugar dissolves in 100 g of water at room temperature.
True
False
31.
True or false? Gases are less soluble in warm water.
True
False
32.
True or false? Every substance has its own solubility.
True
False
33.
True or false? Fish need oxygen dissolved in water.
True
False
34.
True or false? To compare solubility use the same temperature.
True
False
35.
True or false? Salt is more soluble than sugar.
True
False
36.
True or false? Saturated solutions can dissolve more.
True
False
37.
True or false? Gases dissolve better in warm water.
True
False
38.
True or false? Stirring increases solubility.
True
False
39.
True or false? All solids become less soluble when hot.
True
False
40.
True or false? Cooling a saturated solution makes gas.
True
False
41.
True or false? Salt solubility rises sharply with temperature.
True
False
42.
True or false? Cola has 400 g of sugar per can.
True
False
43.
True or false? Warm water holds more oxygen.
True
False
44.
True or false? Solubility is per litre of solution.
True
False
45.
Crystals form when a hot saturated solution ____.
boils
cools
is filtered
is stirred
46.
Every substance has its own ____.
price
solubility
colour
smell
47.
An unsaturated solution can still dissolve ____.
nothing
more
only gas
less
48.
A saturated solution can dissolve ____.
unlimited
no more
much more
only water
49.
More than ____ g of sugar dissolves in 100 g of water at room temperature.
2000
2
20
200
50.
Extra sugar in a saturated solution falls to the ____.
top
bottom
side
middle
51.
A 330 cm³ can of cola contains about ____ g of sugar.
0.4
400
40
4
52.
Sugar is ____ soluble than salt.
equally
more
not
less
53.
Solubility is measured in g per ____ of water.
100 g
1 kg
1 cm³
1 g
54.
For most solids solubility ____ with temperature.
stays
vanishes
decreases
increases
55.
Gases are ____ soluble in warm water.
equally
more
less
not
56.
Fizzy drinks go flat faster when ____.
sealed
cold
warm
frozen
57.
A solubility curve shows solubility against ____.
volume
time
mass
temperature
58.
Cooling a saturated solution forms ____.
gas
steam
crystals
nothing
59.
Salt's solubility ____ with temperature.
rises sharply
changes little
doubles
falls sharply
60.
Potassium nitrate solubility ____ with temperature.
rises sharply
is zero
falls
stays the same
61.
Fish need oxygen ____ in water.
dissolved
absent
frozen
solid
62.
Warm water holds ____ dissolved oxygen.
more
less
equal
infinite
63.
Stirring makes dissolving faster but does not change ____.
solubility
time
speed
temperature
64.
Sand has a solubility of almost ____ g.
zero
200
1000
100
65.
To compare solubility use the same ____.
time of day
temperature
beaker colour
stirrer
66.
Honey is a very ____ sugar solution.
dilute
concentrated
pure
gaseous
67.
Which term matches this definition? “A solution in which no more solute can dissolve at that temperature.”
Saturated solution
Suspension
Dilute solution
Unsaturated solution
68.
Which term matches this definition? “Mass of solute that dissolves in 100 g of water at a given temperature.”
Independent variable
Risk assessment
Solubility
Chromatography
69.
Which is the correct definition of “Solubility”?
Boiling and condensing to separate a solvent.
Mass of solute that dissolves in 100 g of water at a given temperature.
Liquid that dissolves the solute.
What you expect to happen.
70.
Which term matches this definition? “A solution that can dissolve no more solute.”
Thermometer
Supersaturated
Saturated solution
Cholera
71.
Which is the correct definition of “Saturated solution”?
A factor that can change.
A solution that can dissolve no more solute.
Sum of results divided by number of results.
Passing water through sand or gravel to remove particles.
72.
Which term matches this definition? “A solution that can still dissolve more solute.”
Solubility
Hypothesis
Unsaturated solution
Chlorination
73.
Which is the correct definition of “Unsaturated solution”?
A solution that can still dissolve more solute.
Boiling and condensing to separate a solvent.
Disease spread by dirty water.
A factor that can change.
74.
Which term matches this definition? “Graph of solubility against temperature.”
Solvent
Solute
Insoluble
Solubility curve
75.
Which is the correct definition of “Solubility curve”?
A testable explanation.
Unwanted substance in water.
Graph of solubility against temperature.
Health of the whole population.
76.
Which term matches this definition? “Substance that dissolves.”
Soluble
Saturated solution
Anomalous result
Solute
77.
Which is the correct definition of “Solute”?
Substance that dissolves.
Tiny living thing, some cause disease.
Adding chlorine to kill microorganisms.
What the results show.
78.
Which term matches this definition? “Liquid that dissolves the solute.”
Solute
Evaluation
Solvent
Insoluble
79.
Which is the correct definition of “Solvent”?
Substance that dissolves.
Adding chlorine to kill microorganisms.
Liquid that dissolves the solute.
Sum of results divided by number of results.
80.
Which term matches this definition? “Forming crystals as a saturated solution cools.”
Crystallisation
Risk assessment
Control variable
Concentration
81.
Which is the correct definition of “Crystallisation”?
A solution that can still dissolve more solute.
Does not dissolve.
Sum of results divided by number of results.
Forming crystals as a saturated solution cools.
82.
Which term matches this definition? “Does not dissolve.”
Supersaturated
Insoluble
Anomalous result
Dependent variable
83.
Which is the correct definition of “Insoluble”?
A solution that can dissolve no more solute.
Passing water through sand or gravel to remove particles.
Substances not chemically joined.
Does not dissolve.
84.
Which term matches this definition? “Dissolves.”
Soluble
Solubility
Evaluation
Line of best fit
85.
Which is the correct definition of “Soluble”?
Water safe to drink.
Dissolves.
Organised record of measurements.
Liquid that dissolves the solute.
86.
Which term matches this definition? “Holding more solute than normal; unstable.”
Thermometer
Supersaturated
Chromatography
Independent variable
87.
Which is the correct definition of “Supersaturated”?
A solution that can dissolve no more solute.
Holding more solute than normal; unstable.
Unwanted substance in water.
Judging how good the method and data are.
88.
Solubility of potassium nitrate. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 1
A
B
C
D
89.
Solubility of salts at 20 °C (g/100 g). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 2
A
B
C
D
90.
Solubility of sodium chloride. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 3
A
B
C
D
91.
Oxygen dissolved in water. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 4
A
B
C
D
92.
Use the solubility curves. Which substance's solubility changes most with temperature?
Dr Dabour Hub Academy - figure 5
Both the same
Neither
Potassium nitrate
Sodium chloride
93.
Use the curves. About how much potassium nitrate dissolves in 100 g of water at 60 °C?
Dr Dabour Hub Academy - figure 6
169 g
64 g
110 g
37 g
94.
Solubility of potassium nitrate. What is the value of "Solubility (g/100 g water)" when "Temperature (°C)" is 40?
Dr Dabour Hub Academy - figure 7
110
64
169
32
95.
Solubility of potassium nitrate. Between which two values of "Temperature (°C)" did "Solubility (g/100 g water)" change the most?
Dr Dabour Hub Academy - figure 8
60 and 80
20 and 40
0 and 20
40 and 60
96.
Solubility of potassium nitrate. Which statement best describes the pattern?
Dr Dabour Hub Academy - figure 9
"Solubility (g/100 g water)" rises to a peak at 80, then falls
"Solubility (g/100 g water)" increases as "Temperature (°C)" increases
"Solubility (g/100 g water)" stays the same
"Solubility (g/100 g water)" decreases as "Temperature (°C)" increases
97.
Solubility of potassium nitrate. At what value of "Temperature (°C)" is "Solubility (g/100 g water)" greatest?
Dr Dabour Hub Academy - figure 10
60
40
20
80
98.
Solubility of potassium nitrate. At what value of "Temperature (°C)" is "Solubility (g/100 g water)" smallest?
Dr Dabour Hub Academy - figure 11
0
80
40
60
99.
Solubility of potassium nitrate. By how much does "Solubility (g/100 g water)" change between 0 and 80?
Dr Dabour Hub Academy - figure 12
169
182
195
156
100.
Solubility of potassium nitrate. Calculate the percentage change in "Solubility (g/100 g water)" from 0 to 80.
Dr Dabour Hub Academy - figure 13
−1200%
1300%
92%
1200%
101.
Solubility of salts at 20 °C (g/100 g). Which has the greatest value?
Dr Dabour Hub Academy - figure 14
Calcium hydroxide
Sugar
Copper sulfate
Salt
102.
Solubility of salts at 20 °C (g/100 g). Which has the smallest value?
Dr Dabour Hub Academy - figure 15
Calcium hydroxide
Copper sulfate
Sugar
Salt
103.
Solubility of salts at 20 °C (g/100 g). What is the value for Calcium hydroxide?
Dr Dabour Hub Academy - figure 16
36.0
32.0
0.2
204.0
104.
Solubility of salts at 20 °C (g/100 g). About how many times bigger is Sugar than Calcium hydroxide?
Dr Dabour Hub Academy - figure 17
1530.0
2040.0
1020.0
510.0
105.
Solubility of salts at 20 °C (g/100 g). What is the total of all the values?
Dr Dabour Hub Academy - figure 18
244.0
204.0
272.2
300.4
106.
Solubility of sodium chloride. What is the value of "Solubility (g/100 g)" when "Temperature (°C)" is 40?
Dr Dabour Hub Academy - figure 19
35.7
36.6
36.0
37.3
107.
Solubility of sodium chloride. Between which two values of "Temperature (°C)" did "Solubility (g/100 g)" change the most?
Dr Dabour Hub Academy - figure 20
0 and 20
60 and 80
80 and 100
20 and 40
108.
Solubility of sodium chloride. Which statement best describes the pattern?
Dr Dabour Hub Academy - figure 21
"Solubility (g/100 g)" stays the same
"Solubility (g/100 g)" increases as "Temperature (°C)" increases
"Solubility (g/100 g)" decreases as "Temperature (°C)" increases
"Solubility (g/100 g)" rises to a peak at 100, then falls
109.
Solubility of sodium chloride. At what value of "Temperature (°C)" is "Solubility (g/100 g)" greatest?
Dr Dabour Hub Academy - figure 22
60
80
100
40
110.
Solubility of sodium chloride. At what value of "Temperature (°C)" is "Solubility (g/100 g)" smallest?
Dr Dabour Hub Academy - figure 23
0
20
40
80
111.
Solubility of sodium chloride. By how much does "Solubility (g/100 g)" change between 0 and 100?
Dr Dabour Hub Academy - figure 24
75.5
39.8
4.1
5.1
112.
Solubility of sodium chloride. Calculate the percentage change in "Solubility (g/100 g)" from 0 to 100.
Dr Dabour Hub Academy - figure 25
11%
111%
10%
−11%
113.
Oxygen dissolved in water. What is the value of "Oxygen (mg/dm³)" when "Temperature (°C)" is 40?
Dr Dabour Hub Academy - figure 26
9.1
11.3
6.4
14.6
114.
Oxygen dissolved in water. Between which two values of "Temperature (°C)" did "Oxygen (mg/dm³)" change the most?
Dr Dabour Hub Academy - figure 27
20 and 30
10 and 20
0 and 10
30 and 40
115.
Oxygen dissolved in water. Which statement best describes the pattern?
Dr Dabour Hub Academy - figure 28
"Oxygen (mg/dm³)" decreases as "Temperature (°C)" increases
"Oxygen (mg/dm³)" stays the same
"Oxygen (mg/dm³)" increases as "Temperature (°C)" increases
"Oxygen (mg/dm³)" rises to a peak at 0, then falls
116.
Oxygen dissolved in water. At what value of "Temperature (°C)" is "Oxygen (mg/dm³)" greatest?
Dr Dabour Hub Academy - figure 29
0
40
20
10
117.
Oxygen dissolved in water. At what value of "Temperature (°C)" is "Oxygen (mg/dm³)" smallest?
Dr Dabour Hub Academy - figure 30
10
40
20
30
118.
Oxygen dissolved in water. By how much does "Oxygen (mg/dm³)" change between 0 and 40?
Dr Dabour Hub Academy - figure 31
10.2
21.0
8.2
6.4
119.
Oxygen dissolved in water. Calculate the percentage change in "Oxygen (mg/dm³)" from 0 to 40.
Dr Dabour Hub Academy - figure 32
−128%
56%
−56%
44%
120.
Potassium nitrate solubility is 110 g at 60 °C and 32 g at 20 °C (per 100 g water). What mass of crystals forms when a saturated solution cools from 60 °C to 20 °C?
110 g
142 g
78 g
32 g
121.
Sugar solubility rises from 202 g at 20 °C to 476 g at 100 °C. Calculate the percentage increase.
58%
136%
274%
236%
122.
Solubility is 32 g/100 g. Maximum mass in 250 g of water?
8000 g
80 g
800 g
282 g
123.
Solubility is 64 g/100 g. Maximum mass in 200 g of water?
264 g
12,800 g
128 g
1280 g
124.
Solubility is 36 g/100 g. Maximum mass in 200 g of water?
72 g
720 g
7200 g
236 g
125.
Solubility is 32 g/100 g. Maximum mass in 50 g of water?
82 g
16 g
160 g
1600 g
126.
Solubility is 110 g/100 g. Maximum mass in 250 g of water?
360 g
2750 g
275 g
27,500 g
127.
Solubility is 110 g/100 g. Maximum mass in 50 g of water?
55 g
160 g
5500 g
2 g
128.
Solubility is 110 g/100 g. Maximum mass in 200 g of water?
22,000 g
220 g
310 g
2200 g
129.
Solubility is 64 g/100 g. Maximum mass in 250 g of water?
160 g
314 g
1600 g
16,000 g
130.
Solubility is 32 g/100 g. Maximum mass in 200 g of water?
232 g
64 g
640 g
6400 g
131.
Solubility is 36 g/100 g. Maximum mass in 50 g of water?
1800 g
18 g
180 g
86 g
132.
Solubility is 64 g/100 g. Maximum mass in 50 g of water?
114 g
320 g
32 g
3200 g
133.
Solubility is 36 g/100 g. Maximum mass in 250 g of water?
9000 g
286 g
900 g
90 g
134.
A saturated solution at 110 g/100 g is cooled to 32 g/100 g. Mass of crystals from 100 g water?
78 g
32 g
142 g
110 g
135.
A saturated solution at 169 g/100 g is cooled to 32 g/100 g. Mass of crystals from 100 g water?
137 g
32 g
169 g
201 g
136.
A saturated solution at 110 g/100 g is cooled to 64 g/100 g. Mass of crystals from 100 g water?
174 g
46 g
64 g
110 g
137.
A saturated solution at 169 g/100 g is cooled to 64 g/100 g. Mass of crystals from 100 g water?
233 g
105 g
64 g
169 g
138.
Oxygen fell from 11.3 to 7.6 mg/dm³ on warming. Calculate the percentage decrease.
33%
67%
4%
49%
139.
Oxygen fell from 14.6 to 6.4 mg/dm³ on warming. Calculate the percentage decrease.
44%
8%
56%
128%
140.
Oxygen fell from 14.6 to 9.1 mg/dm³ on warming. Calculate the percentage decrease.
6%
62%
38%
60%
141.
Oxygen fell from 11.3 to 6.4 mg/dm³ on warming. Calculate the percentage decrease.
43%
5%
77%
57%
142.
Oxygen fell from 11.3 to 9.1 mg/dm³ on warming. Calculate the percentage decrease.
24%
2%
19%
81%
143.
Oxygen fell from 14.6 to 7.6 mg/dm³ on warming. Calculate the percentage decrease.
52%
48%
92%
7%
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Part of Chapter 8: Pure Substances and Solutions — see every lesson and quiz in this unit.
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