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Solubility Solutions Morality Dilutions

Total questions: 25

Worksheet time: 53mins

Name
Class
Date
1.

You can make a solute dissolve more quickly in a solvent by

a)

adding more solute.

b)

adding ice.

c)

heating the solvent.

d)

removing some solvent.

2.

A solution that contains the maximum amount of the solute it can hold at a given temperature is

a)

diluted.

b)

saturated.

c)

supersaturated.

d)

unsaturated.

3.

The amount of solute that can be dissolved in a specific amount of solvent at a given temperature is its

a)

concentration.

b)

density.

c)

dilution.

d)

solubility.

4.

Three 10 g samples of sugar are represented below.


Sample A dissolves in water more slowly than sample B.

Sample B dissolves more slowly than sample C.

Which of the following best explains why sample A dissolves more slowly than the other two?

a)

It has the most volume.

b)

It has the smallest surface area.

c)

It has the largest number of sugar molecules.

d)

It has the fewest bonds between sugar modules.

5.

A student pours mineral salts into a bottle of cold water. Which of the following best explains why shaking the bottle will affect the dissolving rate of the salt?

a)

Shaking exposes the salts to the solvent more quickly.

b)

Shaking helps more water evaporate.

c)

Shaking equalizes the water temperature.

d)

Shaking causes more ions to precipitate out of solution.

6.

Which substance has 80 grams of solute dissolved in 100 grams of water at 50 °C?

a)

Potassium Bromide

b)

Ammonium Chloride

c)

Potassium Chloride

d)

Lithium Hydroxide

7.
heterogeneous mixture in which some of the particles settle out of the mixture upon standing
a)
solution
b)
colloid
c)
solvent
d)
suspension
8.

type of homogeneous mixture that doesn't separate on its own with large and intermediate particles sizes (milk, paint, fog...)

a)

solution

b)

colloid

c)

suspension

d)

saturated

9.
In this mixture, which of the following will be the solute?
a)
The water in the glass
b)
The glass that holds the final mixture
c)
The solution containing both powder and water
d)
The powder on the spoon
10.
If we are making Kool-aid with sugar, Kool-aid powder, and water, which part is the solvent?
a)
water
b)
powder
c)
sugar
d)
powder and sugar
11.

At approximately what temperature will 40g of NaCl, be fully dissolved?

a)

60 ºC

b)

50 ºC

c)

70 ºC

d)

90 ºC

12.
How many grams of K2Cr2O7, are soluble in 100 g of water at 95 ºC?
a)
83 grams
b)
75 grams
c)
40 grams
d)
12 grams
13.

Which solute does not increase in solubility as temperature rises and is therefore most likely a gas?

a)

NH3

b)

NaNO3

c)

KNO3

d)

NaCl

14.

liquids that do NOT mix

a)

immiscible

b)

miscible

c)

soluble

d)

insoluble

15.

What solution is the MOST soluble at 10 ℃?

a)

NaNO3

b)

CaCl3

c)

KClO3

d)

NaCl

16.

What type of solution is Lithium Hydroxide if you dissolve 20g at 70 ℃?

a)

Saturated

b)

Unsaturated

c)

Supersaturated

d)

Dilute

17.
How many L are required to make 3.5 M hydrochloric acid using 1.1 moles? 
a)
3.18 L
b)
0.31 L
c)
3.85 L
d)
4.6 L
18.
If you have 0.045 L of 0.465 M potassium bromide. How many moles of potassium bromide are present?
a)
20.9 mol
b)
0.021 mol
c)
0.02 mol
d)
0.0209 mol
19.
What is the molarity in 650. ml of solution containing 63 grams of sodium chloride?
a)
2.4 M
b)
0.86 M
c)
1.7 M
d)
0.54 M
20.

How many mL of stock solution of 2M NaCl do you need to prepare 100 mL of 0.150M NaCl?

a)

7.5 mL

b)

15 mL

c)

1333 mL

d)

200 mL

21.

If I have 340 mL of a 0.5 M NaBr solution, what will the concentration be if I add 560 mL more water to it?

a)

.188 M

b)

3.78 M

c)

.389 M

d)

1.76 M

22.

How many mL of 10.8M HCl are required to make 100.0 mL of 3.00M acid?

a)

27.8 mL

b)

.278 mL

c)

2.8 mL

d)

278 mL

23.
What is the molarity of a solution made by adding 1.565 moles of PbNO3 to 500 mL?
a)
300. M
b)
31.3 M
c)
3.13 M
d)
1.56 M
24.

What is the molarity of a solution containing 400 g of CuSO4 (FM: 159.6 g/mol) in 4.0 L of solution?

a)

100 M

b)

1.6 M

c)

0.626 M

d)

0.01 M

25.

How many mL of stock solution of 2M NaCl do you need to prepare 100 mL of 0.150M NaCl?

a)

7.5 mL

b)

15 mL

c)

1333 mL

d)

200 mL