NEW
Font size
S
M
L
XL
WorksheetsSolutions New
Total questions: 30
Worksheet time: 31mins
Name
Class
Date
1.
This is a heterogeneous mixture in which particles settle out unless it is constantly stirred.
a)
colloid
b)
suspension
c)
solution
d)
alloy
2.
In a concentrated solution there is _____.
a)
no solvent
b)
a large amount of solute
c)
a small amount of solute
d)
no solute
3.
How many grams of sodium nitrate, NaNO3, are soluble in 100 g of water at 10 ºC?
a)
80 grams
b)
100 grams
c)
40 grams
d)
10 grams
4.
Which salt is LEAST soluble at 0 ºC?
a)
K2Cr2O7
b)
KNO3
c)
KClO3
d)
Ce2(SO4)3
5.
When 30 grams of potassium nitrate, KNO3, is dissolved in 100 grams of water at 20 ºC, the solution can be correctly described as:
a)
saturated
b)
unsaturated
c)
supersaturated
6.
Describe a solute.
a)
part of solution present in largest amount
b)
gets dissolved
c)
water
d)
surrounds and breaks apart
7.
Describe a solvent.
a)
part of solution present in smallest amount
b)
part of solution present in largest amount
c)
water
d)
gets dissolved
8.
A _______ solution contains more solute than would normally dissolve at a certain temperature.
a)
unsaturated
b)
suspended
c)
saturated
d)
supersaturated
9.
When you measure how fast a solute dissolves, you are measuring the
a)
amount of dissolving
b)
rate of particle movement
c)
amount of particle movement
d)
rate of dissolving
10.
Mixture of two or more substances evenly mixed.
a)
solute
b)
immiscible
c)
solution
d)
concentration
11.
What factors DO NOT affect solubility
a)
Temperature
b)
stirring
c)
Color
d)
pressure
12.
Water is a universal solvent
a)
true
b)
false
13.
Increasing the surface area by crushing of a solid
a)
causes the solid to ionize
b)
has no effect on the rate of dissolving
c)
slows the rate of dissolving
d)
speeds the rate of dissolving
14.
As the temperature of a liquid solvent increases the amount of solid solute that can dissolve in it ___.
a)
decreases
b)
remains constant
c)
increases
d)
decreases by 1 degree Celsius for every milliliter of solvent
15.
Which of the following is a homogeneous mixture?
a)
salt
b)
water
c)
sugar
d)
a sugar-water solution
16.
How can you increase the concentration of a solution?
a)
Add more solvent.
b)
Add more solute.
c)
Increase the volume of the solution.
d)
Increase the amount of water in the solution.
17.
Stirring the solution...
a)
Slows the process down
b)
Doesn't change the process
c)
Speeds up the process
d)
None of the above
18.
Gases are __________ in cooler solvents
a)
less soluble
b)
more soluble
19.
Which is least soluble at 100⁰C?
a)
salt
b)
sugar
20.
What are two parts that make up a solution?
a)
solvent and solute
b)
concentration and dilation
c)
non polar and polar
d)
solid, liquid, and gaseous
21.
Which of these salts decreases in solubility as the temperature increases.
a)
Ce2(SO4)3
b)
KClO3
c)
K2Cr2O7
d)
KNO3
22.
The following diagram shows a solubility curve.
25 grams of NaCl at 60o C is considered as...............
25 grams of NaCl at 60o C is considered as...............
a)
saturated
b)
unsaturated
c)
supersaturated
d)
none
23.
Which of the following best explains why water and oil do not mix?
a)
Oil and water are both polar
b)
Water is non-polar,
and oil is polar
and oil is polar
c)
Water is polar,
and oil is non-polar.
and oil is non-polar.
d)
Oil and water are both non-polar
24.
Which solution has highest concentration of KMnO4?
a)
10 grams in 80 ml of water
b)
4 grams in 20 ml of water
c)
2 grams in 10 ml of water
d)
20 grams in 40 ml of water
25.
Which solution has highest concentration of KMnO4?
a)
10 grams in 80 ml of water
b)
4 grams in 20 ml of water
c)
2 grams in 10 ml of water
d)
20 grams in 40 ml of water
26.
A change in pressure would have the greatest effect on the solubility of a
a)
gas in a liquid
b)
liquid in a solid
c)
solid in a liquid
d)
solid in a gas
27.
Smoke (solid particulates being released into the air) resulting from a fire.
What is the solute and solvent in this solution?
What is the solute and solvent in this solution?
a)
smoke is solvent,
air is solute
air is solute
b)
air is solvent, smoke is solute
c)
air and smoke both are solvent
d)
air and solvent both are solute
28.
Which solute is the least soluble at 90 ⁰C?
a)
SO2
b)
KClO3
c)
KI
d)
HCl
29.
According to the solubility curves, approximately how many grams of KClO3 are dissolved at 40o C ?
a)
15 grams
b)
25 grams
c)
50 grams
d)
5 grams
30.
How many grams of SO2 can dissolve at 50 ⁰C?
a)
5 g
b)
10 g
c)
20 g
d)
39 g
Reset
