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WorksheetsSolutions and Solubility
Total questions: 25
Worksheet time: 25mins
Name
Class
Date
1.
The substance being dissolved.
a)
Solute
b)
Solvent
c)
Solution
d)
Concentration
2.
The substance that dissolves the solute.
a)
Solution
b)
Solute
c)
Concentration
d)
Solvent
3.
When you put a Kool-Aid packet in a pitcher of water, which one is the solvent?
a)
Kool-aid
b)
Water
4.
Stirring the solution...
a)
Slows the process down
b)
Doesn't change the process
c)
Speeds up the process
d)
None of the above
5.
A solution is a ___________ mixture of two or more substances evenly distributed through out a single phase.
a)
homogeneous
b)
heterogeneous
c)
solvent
d)
suspension
6.
why does increasing the temperature of the solvent speed up the dissolving process?
a)
it brings fresh solvent into contact with more sloute
b)
it brings more sloute to the solvent
c)
more solvent molecules collide with the sloute
d)
it is hot so it dissolves faster
7.
Polar solvents dissolve polar solutes, so which of the following is an example?
a)
hexane + grease
b)
it brings more solute to the solvent
8.
The solution salt needs ___ grams of solute dissolved in 100ml of water at 60⁰ C to make the solution supersaturated
a)
200 grams
b)
350 grams
c)
290 grams
d)
300 grams
9.
Oil molecules are nonpolar. What kind of solvent is required to remove an oil stain?
a)
saturated
b)
unsaturated
c)
polar
d)
nonpolar
10.
If an electrical current can run through a solution, it is said to contain
a)
magic
b)
nonelectrolytes
c)
electricity
d)
electrolytes
11.
Which of the following is an electrolyte?
a)
sodium chloride
b)
sugar (carbon, oxygen, hydrogen)
c)
water (hydrogen and water)
d)
sand (silicon and oxygen)
12.
An example of a nonelectrolyte is
a)
sugar water
b)
salt water
c)
sodium chloride
d)
hydrogen chloride
13.
The "like dissolves like" rule is the reason why water cannot dissolve
a)
salt
b)
sugar
c)
vinegar
d)
oil
14.
This type of mixture contains two or more substances that are visibly distinguishable.
a)
homogeneous
b)
heterogeneous
c)
solution
d)
colloid
15.
When a substance can dissolve in another substance, it is said to be..
a)
soluble
b)
insoluble
c)
miscible
d)
immiscible
16.
True or false? Insoluble means that two substances can dissolve in one another.
a)
true
b)
false
17.
Water is a universal solvent
a)
true
b)
false
18.
A beaker containing 80 grams of lead(II) nitrate, Pb(NO3)2, in 100 grams of water has a temperature of 30 ºC. Approximately how many grams of the salt are undissolved, on the bottom of the beaker?
a)
20 grams
b)
80 grams
c)
66 grams
d)
14 grams
19.
Which salt is LEAST soluble at 0 ºC?
a)
K2Cr2O7
b)
KNO3
c)
KClO3
d)
Ce2(SO4)3
20.
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
21.
At approximately what temperature does the solubility of sodium chloride, NaCl, match the solubility of potassium dichromate, K2Cr2O7?
a)
60 ºC
b)
30 ºC
c)
50 ºC
d)
83 ºC
22.
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
23.
What is Solubility?
a)
What is dissolved
b)
What does the dissolving
c)
A measure of how much solute can dissolve in solvent
d)
a charged ion
24.
What factors DO NOT affect solubility
a)
Temperature
b)
Pressure
c)
Color
25.
Saturated Solution is-
a)
A solution in which the maximum amount of solvent has been dissolved.
b)
solute
c)
solvent
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