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Chemistry: Solutions & Solubility

Total questions: 20

Worksheet time: 25mins

Name
Class
Date
1.

All of the following are heterogeneous mixtures except

a)

whole wheat bread.

b)

granite.

c)

tap water.

d)

an oil-water mixture.an oil-water mixture.

2.

What type of solute-solvent combination is carbon dioxide in water?

a)

gas-liquid

b)

liquid-gas

c)

liquid-liquid

d)

cannot be determined

3.

What is the molarity of a solution that contains 0.202 mol KCl (molar mass = 74.55 g/mol) 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

4.

A solution containing 35 g of Li2SO4 dissolved in 100 g of water is heated from 10°C to 90°C. According to information in the figure, this temperature change would result in

a)

an additional 5 g of Li2SO4 in solution.

b)

an additional 30 g of Li2SO4 in solution.

c)

5 g of Li2SO4 precipitate.

d)

no change in Li2SO4 concentration.

5.

According to saturation curves shown in the figure, which of the following solutions is supersaturated?

a)

40 g of NaCH3COO in 100 g of water at 40°C

b)

140 g of NaCH3COO in 100 g of water at 80°C

c)

80 g of NaCH3COO in 100 g of water at 40°C

d)

80 g of NaCH3COO in 200 g of water at 40°C

6.

A dissolved solute that does not form ions is

a)

a nonelectrolyte.

b)

a weak electrolyte.

c)

a strong electrolyte.

d)

insoluble.

7.

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.

8.

A solution that contains a large concentration of solute but can hold even more solute is

a)

unsaturated and dilute.

b)

saturated and dilute.

c)

unsaturated and concentrated.

d)

saturated and concentrated.

9.

It is the medium in which matter is dissolved.

a)

Solubility

b)

Solution

c)

Solvent

d)

Solute

10.

We have 3 cups of orange juice samples, based on the color which one is SATURATED?

a)

Cup A

b)

Cup B

c)

Cup C

d)

None of the Above

11.

We have 3 cups of orange juice samples, based on the color which one is SUPERSATURATED?

a)

Cup A

b)

Cup B

c)

Cup C

d)

None of the Above

12.

You make a Kool Aid drink using Kool Aid powder, sugar, & water & you notice your drink still has to much powder sitting at the bottom. What will happen if you add more water to the drink?

a)

decrease the solubility of your drink

b)

decrease the solubility rate of your drink

c)

increase the solubility rate of your drink

d)

increase the solubility of your drink

13.
What type of solution is holds more than the maximum amount of solute when it is rapidly heated & then cooled slowly producing crystals?
a)
unsaturated 
b)
saturated 
c)
supersaturated 
14.
When no more sugar will dissolve in a glass of water, the solution is...
a)
unsaturated
b)
saturated
c)
supersaturated
15.
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
16.
Which salt is LEAST soluble at 0 ºC?
a)
K2Cr2O7
b)
KNO3
c)
 KClO3
d)
Ce2(SO4)3
17.
How many grams of NaNOare soluble in 100 g of water at 10 ºC?
a)
80 grams
b)
100 grams
c)
40 grams
d)
10 grams
18.

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

19.

Which of the following types of solutions has more room to dissolve solute?

a)

supersaturated

b)

saturated

c)

unsaturated

20.

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