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WorksheetsSolutions Unit in Chemistry
Total questions: 28
Worksheet time: 1hrs 16mins
Name
Class
Date
1.
__________ are made up of solutes and solvents.
a)
Solutions
b)
Suspension
c)
Colloid
2.
A saturated solution is______
a)
No more solute can be dissolved
b)
More solute can be dissolved
c)
The solvent and solution
3.
How does a solution become supersaturated?
a)
dissolve lots of solute in it.
b)
dissolve a little solute in it.
c)
try to dissolve more solute than you should be able to.
d)
dissolve a super amount of solvent in it.
4.
Which solute is the most soluble at 10 ⁰C?
a)
KI
b)
KClO3
c)
NH4Cl
d)
NH3
5.
Which solute is the least soluble at 90 ⁰C?
a)
SO2
b)
KClO3
c)
KI
d)
HCl
6.
Which solute does not increase in solubility as temperature rises?
a)
NH3
b)
NaNO3
c)
KNO3
d)
NaCl
7.
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
8.
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
9.
Based on the graph, how much of NaCl will dissolve in 400g of water at 75oC?
a)
160g
b)
40g
c)
120g
d)
20g
10.
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
11.
Which of the following factors does not effect the rate of dissolving?
a)
Temperature
b)
Agitation (stirring)
c)
Color
d)
Surface Area of solute (size)
12.
What will allow more solute to be dissolved in a solvent.
a)
adding more solute
b)
evaporation
c)
cooling solution
d)
heating solution
13.
Why does ice float?
a)
The density gets larger due to the formation of a crystalline structure
b)
The density get smaller due to the formation of a crystalline structure
c)
The liquid water's force pushes the ice to the top
d)
The covalents bonds are in random order causing the density to lower
14.
What causes water to have a high specific heat?
a)
Hydrogen Bonding
b)
Ionic Bonds
c)
Nonpolar Covalent Bonds
d)
Polar Covalent Bonds
15.
Solution where more solute can still be dissolved at the given temperature.
a)
Saturated
b)
Unsaturated
c)
Supersaturated
d)
Homogeneous solution
16.
Which is an example of a solvent in salt water?
a)
Salt
b)
Air
c)
Water
d)
There is no solvent
17.
Which would dissolve faster
a)
Cubed Sugar
b)
Powdered Sugar
c)
Granular Sugar
d)
Bar of sugar
18.
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
19.
Water has _________ molecular shape.
a)
Linear
b)
Pyrimidal
c)
Planar
d)
Bent
20.
What is surface tension?
a)
The inward force that maximizes the surface area of a liquid
b)
The outward force that maximizes the surface area of a liquid
c)
The outward force that minimizes the surface area of a liquid
d)
The inward force that minimizes the surface area of a liquid
21.
Solutions that conduct a current are called ____________ and are made from ___________ compounds.
a)
electrolytes; ionic
b)
nonelectrolytes; ionic
c)
electrolytes; molecular
d)
electrolytes; covalent
22.
Oil molecules are nonpolar. What kind of solvent is required to remove an oil stain?
a)
saturated
b)
unsaturated
c)
polar
d)
nonpolar
23.
Which of the following has the MOST surface area?
a)
A single 5 gram ice cube
b)
5 grams of crushed ice
c)
5 grams of shaved ice
24.
If 400 mL of a 8.0 M solution is diluted to a molarity of 5.3M, about how much solvent volume was added?
a)
200 mL
b)
600 mL
c)
400 mL
d)
180 mL
25.
This solution would be considered
a)
Unsaturated
b)
Supersaturated
c)
Saturated
d)
Undefined
26.
what is the molarity of a solution that contains 125 g NaCl in 4.00 L of solution?
a)
0.535 M NaCl
b)
2.14 M NaCl
c)
8.56 M NaCl
d)
31.3 M NaCl
27.
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
28.
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
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