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Course: Alhussan Chemistry — Stage 8
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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 8.4 Solutions and concentration — Quiz

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  • Questions count: 50
  • Passing grade: B+
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1.
Acid concentrations in products (g/dm³). What is the total of all the values?
Dr Dabour Hub Academy - figure 1
414
552
615
678
2.
A 120 g/dm³ solution is diluted to 5 times the volume. New concentration?
115 g/dm³
600 g/dm³
240 g/dm³
24 g/dm³
3.
Vinegar contains dilute ethanoic acid. Concentrated ethanoic acid is:
Safe to eat
Neutral
An alkali
Corrosive and can burn skin
4.
A 40 g/dm³ solution is diluted to 2 times the volume. New concentration?
200 g/dm³
38 g/dm³
20 g/dm³
80 g/dm³
5.
Which term matches this definition? “Liquid that dissolves a solute.”
Dilute
Fair test
Solvent
g/dm³
6.
A dilute solution has a ____ amount of solute.
fixed
large
small
huge
7.
Mass of solute in 100 cm³ of a 20 g/dm³ solution?
5 g
2 g
2000 g
20 g
8.
Concentration of a solution as water is added. At what value of "Total volume (cm³)" is "Concentration (g/dm³)" greatest?
Dr Dabour Hub Academy - figure 2
500
100
1000
400
9.
Vinegar contains ____ ethanoic acid.
concentrated
dilute
solid
gaseous
10.
Which term matches this definition? “Substance that dissolves.”
Ethanoic acid
Solute
Evaporate
Pure dye
11.
Which is the correct definition of “Dilution”?
Adding solvent to lower concentration.
A question that can be answered by investigation.
A coloured substance.
Temperature at which a solid melts.
12.
A concentrated solution has a ____ amount of solute.
equal
large
zero
small
13.
Acid concentrations in products (g/dm³). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 3
A
B
C
D
14.
Colour intensity against concentration. Between which two values of "Concentration (g/dm³)" did "Colour reading" change the most?
Dr Dabour Hub Academy - figure 4
30 and 40
0 and 10
10 and 20
20 and 30
15.
Sugar in drinks (g per 100 cm³). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 5
A
B
C
D
16.
Mass of solute in 100 cm³ of a 80 g/dm³ solution?
1 g
8000 g
8 g
80 g
17.
A 100 g/dm³ solution is diluted to 2 times the volume. New concentration?
50 g/dm³
98 g/dm³
500 g/dm³
200 g/dm³
18.
10 g of solute is dissolved in 250 cm³. Concentration in g/dm³?
2500 g/dm³
25 g/dm³
400 g/dm³
40 g/dm³
19.
Which is the correct definition of “Concentration”?
Removing salt from seawater.
Amount of solute in a given volume.
Gives one spot.
Separating dissolved substances on paper using a solvent.
20.
Sea water is more ____ than tap water in salt.
pure
acidic
concentrated
dilute
21.
True or false? Squash is diluted by adding water.
True
False
22.
Which term matches this definition? “A solution with a large amount of solute in a given volume.”
Concentrated solution
Saturated solid
Dilute solution
Pure solvent
23.
A 40 g/dm³ solution is diluted to 5 times the volume. New concentration?
80 g/dm³
200 g/dm³
35 g/dm³
8 g/dm³
24.
A 60 g/dm³ solution is diluted to 4 times the volume. New concentration?
15 g/dm³
150 g/dm³
56 g/dm³
240 g/dm³
25.
Sugar in drinks (g per 100 cm³). Which has the greatest value?
Dr Dabour Hub Academy - figure 6
Juice
Cola
Squash (diluted)
Squash (undiluted)
26.
Sugar in drinks (g per 100 cm³). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 7
A
B
C
D
27.
Which statement is NOT correct?
Vinegar is concentrated acid.
Concentrated is not the same as strong for acids.
Medicines must be the correct concentration.
Adding water makes a solution more dilute.
28.
Mass of solute in 250 cm³ of a 40 g/dm³ solution?
100 g
6 g
10,000 g
10 g
29.
A 60 g/dm³ solution is diluted to 5 times the volume. New concentration?
120 g/dm³
300 g/dm³
55 g/dm³
12 g/dm³
30.
True or false? Paler colour means more concentrated.
True
False
31.
10 g of solute is dissolved in 500 cm³. Concentration in g/dm³?
200 g/dm³
50 g/dm³
20 g/dm³
5000 g/dm³
32.
Which statement is correct?
Diluting acid lowers pH.
Cordial drinks are sold concentrated.
Dilute acids are more corrosive.
Concentration is measured in °C.
33.
Cordial drinks are sold ____.
as gas
as powder only
frozen
concentrated
34.
In a dilute solution solute particles are ____.
far apart
close
absent
solid
35.
Evaporating water makes a solution more ____.
concentrated
neutral
dilute
pure
36.
Which term matches this definition? “Solute particles compared with solvent particles.”
Solvent
Particle ratio
Pigment
Stationary phase
37.
Which statement is correct?
1 dm³ = 100 cm³.
Doubling the volume halves the concentration.
Diluting acid lowers pH.
Paler colour means more concentrated.
38.
True or false? Vinegar is concentrated acid.
True
False
39.
A 120 g/dm³ solution is diluted to 2 times the volume. New concentration?
118 g/dm³
60 g/dm³
600 g/dm³
240 g/dm³
40.
Which statement is correct?
Doubling volume doubles concentration.
Adding water makes a solution more concentrated.
Adding water makes a solution more dilute.
Paler colour means more concentrated.
41.
Adding water makes a solution more ____.
solid
concentrated
dilute
acidic
42.
1 dm³ equals ____ cm³.
1
1000
10
100
43.
Acid concentrations in products (g/dm³). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 8
A
B
C
D
44.
True or false? Dilution does not change the mass of solute.
True
False
45.
Which term matches this definition? “Acid in vinegar.”
Dehydration
Ethanoic acid
Evaporate
Solvent front
46.
Concentration of a solution as water is added. At what value of "Total volume (cm³)" is "Concentration (g/dm³)" smallest?
Dr Dabour Hub Academy - figure 9
100
1000
200
500
47.
A 100 g/dm³ solution is diluted to 4 times the volume. New concentration?
96 g/dm³
400 g/dm³
250 g/dm³
25 g/dm³
48.
20 g of solute is dissolved in 500 cm³. Concentration in g/dm³?
25 g/dm³
40 g/dm³
400 g/dm³
10,000 g/dm³
49.
Acid concentrations in products (g/dm³). What is the value for Lab acid?
Dr Dabour Hub Academy - figure 10
81
65
55
414
50.
True or false? 1 dm³ = 100 cm³.
True
False
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Part of Chapter 8: Pure Substances and Solutions — see every lesson and quiz in this unit.
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