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Worksheets

Unit 10 solutions

Total questions: 50

Worksheet time: 29mins

Name
Class
Date
1.

A solution that contains the maximum amount of solvent that it can at a specific temperature is called _____.

a)
saturated
b)

supersaturated

c)

maximum loaded

d)
unsaturated
2.

What are the units used for solubility?

a)

grams of solute/100 grams of water at a specific temperature

b)

Moles of solute/moles of solvent at a specific temperature

c)

100 g of water / grams of solute at a specific temperature

d)

moles of solvent/moles of solute at a specific temperature

3.

What is another term for concentration?

a)

grams

b)

Molarity

c)

Moles

d)

Liters

4.

If 50 grams of a compound will dissolve in 100 grams of water at 75 degrees Celsius, how much will dissolve in 300 grams of water?

a)

50

b)

100

c)

150

d)

75

5.

The material which is being dissolved is called the

a)

solute

b)

solvent

c)

solvation

d)

solubility

6.

The material which is doing the dissolving is called the

a)

solute

b)

solvent

c)

solvation

d)

solubility

7.

Solvation is the process where

a)

the solute surrounds the solvent

b)

crystals come out of solution

c)

the solvent surrounds the solute

d)

the solvent and solute form layers

8.

A solution is a ____ mixture.

a)

homogenous

b)

heterogeneous

9.

Substances which dissolve together are called insoluble.

a)

True

b)

False

10.

Nonelectrolytes conduct electricity

a)

True

b)

False

11.

A ____ solution holds more solute than it normally should.

a)

saturated

b)

unsaturated

c)

supersaturated

12.

A ____ solution can dissolve more solute.

a)

saturated

b)

unsaturated

c)

supersaturated

13.

A ____ solution can not dissolve any more solute.

a)

saturated

b)

unsaturated

c)

supersaturated

14.

How does increasing the temperature generally affect the solubility of a solid in a liquid?

a)

Decreases solubility

b)

Increases solubility

c)

No effect on solubility

d)

First increases then decreases

15.

How does agitation (stirring) affect the solubility of a solid in a liquid?

a)

Decreases solubility

b)

Increases solubility

c)

No effect on solubility

d)

Initially increases solubility, then has no effect

16.

What does the term "insoluble" mean?

a)

Can dissolve a lot

b)

Cannot be dissolved

c)

Can be dissolved easily

d)

Does not affect solubility

17.
The maximum amount of a solute that can be dissolved in a given amount of solvent at a given temperature.
a)
solubility
b)
concentrated
c)
diluted
d)
surface area
18.

If I add a crystal to my solution and it dissolves, the solution was

a)

saturated

b)

unsaturated

c)

supersaturated

19.

If I add a crystal to my solution and it does not dissolve, the solution was

a)

saturated

b)

unsaturated

c)

supersaturated

20.

If I add a crystal to my solution and it does not dissolve, the solution was

a)

saturated

b)

unsaturated

c)

supersaturated

21.

If I add a crystal to my solution and more crystals appear, the solution was

a)

saturated

b)

unsaturated

c)

supersaturated

22.

The solubility of a gas decreases as the temperature increases.

a)

True

b)

False

23.

If a crystalline solute will dissolve 20 grams in 100 grams of water at 70 C, will it dissolve more or less at 40 degrees C

a)

more

b)

less

24.

On a solubility Curve graph, a gram amount on the line for a solute is a ____ solution.

a)

saturated

b)

unsaturated

c)

supersaturated

25.

On a solubility Curve graph, a gram amount below the line for a solute is a ____ solution.

a)

saturated

b)

unsaturated

c)

supersaturated

26.

On a solubility Curve graph, a gram amount above the line for a solute is a ____ solution.

a)

saturated

b)

unsaturated

c)

supersaturated

27.

To keep a gas solute dissolved in a solution you would

a)

keep under pressure

b)

raise the temperature

c)

lower the temperature

d)

add salt

28.

Polar solutes will dissolve in nonpolar solvents.

a)

True

b)

False

29.

Molarity is measured in

a)
moles per liter
b)
moles per kilogram
c)
liters per mole
d)
grams per liter
30.

500 mL = ____ L

a)
50 L
b)
5 L
c)
0.5 L
d)
0.05 L
31.

How much KClO3 will dissolve in 100 grams of water at 30 C?

a)

10

b)

30

c)

100

d)

15

32.

How much NaNO3 will dissolve in 400 grams of water at 10 C?

a)

80

b)

10

c)

100

d)

320

33.

If you have 30 grams of KCl in 100 grams of water at 60 C, the solution is

a)

saturated

b)

unsaturated

c)

supersaturated

34.

If you have 30 grams of KCl in 100 grams of water at 60 C, how much more should be added to make the solution saturated?

a)

10

b)

45

c)

15

d)

30

35.

25 mL = ___ L

a)
0.25
b)
0.5
c)
0.025
d)
0.1
36.
What does it mean to dilute a solution?
a)
lower the concentration of solute per solvent
b)
increase the concentration of solute per solvent
37.

I have a stock solution of concentrated acid, which equation would I use to make a diluted solution.

a)

M = moles / Liter

b)

C1 * V1 = C2 * V2

38.

How do you change grams to moles?

a)

multiple by molar mass

b)

divide by molar mass

39.

What is the molar mass of NaCl?

a)
36.45 g/mol
b)
58.44 g/mol
c)
63.55 g/mol
d)
40.08 g/mol
40.

If you want to make 300mL of 0.500M sulfuric acid, how many mL of a 2.00M stock solution should be used?

a)

75 mL

b)

.0133 mL

c)

1200 mL

d)

150 mL

41.

You have a solution of 3.25 moles NaCl in 1.30L of water, what is the molarity?

a)

0.52 M

b)

0.575 M

c)

4.225 M

d)

2.50 M

42.

How many grams of sodium chlorate will dissolve in 100 g of water at 50 degrees Celsius?

a)

20 grams

b)

80 grams

c)

140 grams

d)

220 grams

43.
When 50 grams of KCl is dissolved in 100 grams of water at 50 ºC, the solution can be correctly described as:
a)
supersaturated
b)
unsaturated
c)
saturated
44.

A beaker containing 30g of NH4Cl, in 100 grams of water has a temperature of 50°C. Approximately how many grams of the salt still need to be added to make a saturated solution?

a)

10g

b)

20g

c)

25g

d)

15g

45.
Solutions in which electric currents cannot run through are said to be
a)
noncolloidal
b)
electrolytes
c)
nonelectrolytes
d)
conductors
46.
A solute that contains polar molecules will dissolve in a solvent that contains
a)
nonpolar molecules
b)
polar molecules
c)
covalent molecules
d)
equal-sized molecules
47.
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
48.

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

49.

What is the molarity of a solution in which 3.0 moles of NaCl is dissolved in 1.5 L of solution?

a)

2.0 M

b)

0.50 M

c)

135 M

d)

4.5 M

50.

If I need to make 500 mL of a 1.5 M solution of HCl, what volume of concentrated 12.0 M HCl would I use to make the solution?

a)

62.5 mL

b)

0.036 mL

c)

4000 mL

d)

100 mL