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Total questions: 44

Worksheet time: 1hrs 4mins

Name
Class
Date
1.

What is the molarity of 0.798 mol NaCl in 2.02 L solution?

a)

1.61 M

b)

0.395 M

c)

2,53 M

2.

A mixture with more solute dissolved in the solvent than is usually soluble is called:

a)

concentrated

b)

supersaturated

c)

saturated

d)

unsaturated

3.

When you have added as much solute as can dissolve in the solvent, the solution is called:

a)

concentrated

b)

supersaturated

c)

saturated

d)

unsaturated

4.
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
5.
Which substance is MOST soluble at 0 ºC?
a)
KI
b)
NaNO3
c)
NaCl
d)
Ce2(SO4)3
6.
Which substance is MOST soluble at 0 ºC?
a)
KI
b)
NaNO3
c)
NaCl
d)
Ce2(SO4)3
7.
When 20 grams of KNO3 is dissolved in 100 grams of water at 80 ºC, the solution can be correctly described as:
a)
supersaturated
b)
saturated
c)
unsaturated
8.
What is a substance that is dissolved in another substance? 
a)
solution
b)
solute
c)
solvent
d)
compound
9.
What is a solvent?
a)
The substance that does the dissolving in a solution.
b)
The substance that is being dissolved in a solution.
c)
The mixing of different substances.
d)
The process in which neutral molecules lose or gain electrons
10.
Kool-Aid - Powder, sugar, and water
Identify the solvent 
a)
water
b)
powder
c)
sugar
d)
powder and sugar
11.
When Koolaid mix is light colored and tastes watery it is a _______ solution.
a)
saturated 
b)
diluted
12.
When a Koolaid mix in water is dark in color and very sweet it is a __________ solution.
a)
concentrated 
b)
Diluted
13.
To make a solute dissolve more quickly i n a solvent which would you do?
a)
Put it in cold water and stir it
b)
Put it in warm water and stir it
14.
When a certain amount of solvent cannot hold any more solute it is called a ________ solution.
a)
Diluted
b)
Saturated
15.

You are given a small beaker of solution at room temp. You add a bit of solute to the solution and it dissolves. The solution was:

a)

saturated

b)

unsaturated

c)

concentrated

d)

warm

16.

How do you know when you have a saturated solution?

a)

You don't see anymore material in the solution. It has dissolved.

b)

The material dissolves and no more will dissolve because you see it collect at the bottom.

c)

The solution is bubbling and cloudy.

d)

The solution is clear and there is nothing at the bottom.

17.

A student dissolves sodium chloride, NaCl, in distilled water. Which word best describes the water in this situation?

a)

reactant

b)

product

c)

solute

d)

solvent

18.

A solution is a special mixture formed when one substance is _____________evenly throughout the other.

a)

Dissolved

b)

Disappearing

c)

Spread Out

d)

Put

19.
Ocean water is a solution?
a)
True
b)
False
20.
This graph represents a(n) ___ solution
a)
saturated
b)
supersaturated
c)
unsaturated
d)
undefined
21.
This solution would be considered
a)
Unsaturated
b)
Supersaturated
c)
Saturated
d)
Undefined
22.
In the above picture, a powder is about to be poured into the liquid. Which of the following should be done to make this powder dissolve faster?

a)
stir the powder in the liquid
b)
freeze the mixture
c)
add more powder to the liquid
d)
store the mixture in a dark place
23.
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
24.

How do you know when you have a saturated solution?

a)

You don't see anymore material in the solution. It has dissolved.

b)

The material dissolves and no more will dissolve because you see it collect at the bottom.

c)

The solution is bubbling and cloudy.

d)

The solution is clear and there is nothing at the bottom.

25.

What is a solute?

a)

different materials placed together but keeping their own properties

b)

a mixture in which substances spread out evenly and will not settle

c)

the degree to which a material will dissolve in another substance

d)

the substance in a solution that has the greatest amount

e)

the substance in a solution that has the least amount

26.

What is a solvent?

a)

different materials placed together but keeping their own properties

b)

a mixture in which substances spread out evenly and will not settle

c)

the degree to which a material will dissolve in another substance

d)

the substance in a solution that has the greatest amount

e)

the substance in a solution that has the least amount

27.

In a solution of saltwater, what is the solute?

a)

salt

b)

water

c)

ice

d)

the glass

28.

In a solution of saltwater, what is the solvent?

a)

salt

b)

water

c)

ice

d)

the glass

29.

A solution that 6 moles of Glucose dissolved in 4 L of water has molarity

a)

0.75 moles/L

b)

1.5 moles/L

c)

2/3 moles/L

d)

3 moles/L

30.

In a solution of a glass of soda, the gas bubbles are the _________ and the liquid is the ___________

a)

solute, solvent

b)

solvent, solute

c)

solvent, soluble

d)

Insoluble and solubility

31.

A sample of brass is an __________ which has 77% Copper and 23% Tin. In this sample the Tin is the ___________

a)

alloy, solute

b)

alloy, solvent

c)

emulsion, solute

d)

emulsion, solvent

32.

If you have a solution that contains 10 moles of Hydrochloric acid in 2.3 liters of distilled water, what is the concentration ( molarity) of your acid?

a)

3.4 M

b)

4.4 M

c)

1.5 M

d)

8.3 M

33.

At 30'C, which substance has the lowest solubility?

a)

KNO3

b)

KBr

c)

NaCl

d)

Yb2(SO4)3

34.

At 80'C, KBr's solubility is:

a)

100

b)

90

c)

80

d)

0

35.

Identify if the following solution would be saturated, unsaturated, or supersaturated: 103 g KBr at 70'C.

a)

Unsaturated

b)

Saturated

c)

Supersaturated

36.

Identify how many grams of KNO3 is required to make a saturated solution at 40'C.

a)

50 g

b)

45 g

c)

60 g

d)

33 g

37.

If you were to place 60 g of Ammonium Chloride, NH4Cl into the water at 50'C, how much of substance would not dissolve?

a)

5 g

b)

20 g

c)

60 g

d)

10 g

38.
Which substance is MOST soluble at 0 ºC?
a)
KI
b)
NaNO3
c)
NaCl
d)
Ce2(SO4)3
39.
Which solute does not increase in solubility as temperature rises?
a)
NH3
b)
NaNO3
c)
KNO3
d)
NaCl
40.
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
41.
When 20 grams of KNO3 is dissolved in 100 grams of water at 80 ºC, the solution can be correctly described as:
a)
supersaturated
b)
saturated
c)
unsaturated
42.
When two liquids mix, they are said to be....
a)
insoluble
b)
miscible
c)
soluble
d)
immiscible
43.
What will allow more solute to be dissolved in a solvent.
a)
adding more solute
b)
stiring
c)
cooling solution
d)
heat
44.
What is unsaturated?
a)
A solution with more solute than solvent
b)
A solution with less than the maximum amount of solutes 
c)
A solution with the  perfect balance of solutes and solvents
d)
A solution with solids at the bottom

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