# Final Exam Review Units 8-10

```Final Exam Review
Units 8-10
45 Questions in 80 minutes
1:45 per question
15 Questions = 33 points
26:33 timer
Station 1 (Heat Unit 8)
• Which of the following is an endothermic phase
change?
a)
b)
c)
d)
Sublimation
Freezing
Condensation
None of these
Station 1 (Heat Unit 8)
• Which of the following is an endothermic phase
change?
a)
b)
c)
d)
Sublimation
Freezing
Condensation
None of these
Station 2 (Heat Unit 8)
• How much heat does a 3.0 gram ice cube absorb
as its temperature increases from -7.4C to
5.0C?
a)
b)
c)
d)
46.62 J
1001 J
1110.42 J
155.5 J
Station 2 (Heat Unit 8)
• How much heat does a 3.0 gram ice cube absorb
as its temperature increases from -7.4C to
5.0C?
a)
b)
c)
d)
46.62 J
1001 J
1110.42 J
155.5 J
Station 3 (Heat Unit 8)
• How much heat is released when 4.1 grams of
water is frozen?
a)
b)
c)
d)
1.4 kJ
25 kJ
170 kJ
9.3 kJ
Station 3 (Heat Unit 8)
• How much heat is released when 4.1 grams of
water is frozen?
a)
b)
c)
d)
1.4 kJ
25 kJ
170 kJ
9.3 kJ
Station 4 (Heat Unit 8)
• Classify the condensation of steam as a chemical
change or a physical change.
a) Chemical change
b) Physical change
Station 4 (Heat Unit 8)
• Classify the condensation of steam as a chemical
change or a physical change.
a) Chemical change
b) Physical change
Station 5 (Heat Unit 8)
• If 3.0g of water at 35C is mixed with 8g of
ethanol at 9C, what is the final temp of the
mixture?
a)
b)
c)
d)
e)
19.2C
39.4C
10.4C
42.0C
None of these
Station 5 (Heat Unit 8)
• If 3.0g of water at 35C is mixed with 8g of
ethanol at 9C, what is the final temp of the
mixture?
a)
b)
c)
d)
e)
19.2C
39.4C
10.4C
42.0C
None of these
Station 6 (Solutions Unit 9)
• Which of the following would NOT increase the
rate of solvation?
a)
b)
c)
d)
e)
Increase surface area
Agitate the mixture by stirring
Increase the temperature of the solvent
All of these will increase the rate.
A and B
Station 6 (Solutions Unit 9)
• Which of the following would NOT increase the
rate of solvation?
a)
b)
c)
d)
e)
Increase surface area
Agitate the mixture by stirring
Increase the temperature of the solvent
All of these will increase the rate.
A and B
Station 7 (Solutions Unit 9)
• Use the solubility graph on your reference sheet.
If 70 grams of O2 is dissolved in water at room
temperature (24C), will the solution be
saturated, supersaturated, or unsaturated?
a)
b)
c)
d)
Saturated
Supersaturated
Unsaturated
Cannot tell based on the information given.
Station 7 (Solutions Unit 9)
• Use the solubility graph on your reference sheet.
If 70 grams of O2 is dissolved in water at room
temperature (24C), will the solution be
saturated, supersaturated, or unsaturated?
a)
b)
c)
d)
Saturated
Supersaturated
Unsaturated
Cannot tell based on the information given.
Station 8 (Solutions Unit 9)
• Which of the following aqueous solutions will
give the highest freezing point?
a)
b)
c)
d)
e)
1m KI
1m CaF2
1mAlPO4
1m Mg3(PO4)2
All of these solutions will have the same freezing
point.
Station 8 (Solutions Unit 9)
• Which of the following aqueous solutions will
give the highest freezing point?
a)
b)
c)
d)
e)
1m KI
1m CaF2
1mAlPO4
1m Mg3(PO4)2
All of these solutions will have the same freezing
point.
Station 9 (Solutions Unit 9)
• A solution is 14.2 M NaOH and is diluted. What
is the concentration if 10mL of the concentrated
solution is diluted to 630mL?
a)
b)
c)
d)
e)
0.225 M
14.4 M
895 M
0.895 M
14.0 M
Station 9 (Solutions Unit 9)
• A solution is 14.2 M NaOH and is diluted. What
is the concentration if 10mL of the concentrated
solution is diluted to 630mL?
a)
b)
c)
d)
e)
0.225 M
14.4 M
895 M
0.895 M
14.0 M
Station 10 (Solutions Unit 9)
• How many grams of lithium chloride would you
need to add to 25g water to make 0.80 molal
solution?
a)
b)
c)
d)
e)
0.02 grams of LiCl
0.2 grams of LiCl
20 grams of LiCl
0.848 grams of LiCl
0.00048 grams of LiCl
Station 10 (Solutions Unit 9)
• How many grams of lithium chloride would you
need to add to 25g water to make 0.80 molal
solution?
a)
b)
c)
d)
e)
0.02 grams of LiCl
0.2 grams of LiCl
20 grams of LiCl
0.848 grams of LiCl
0.00048 grams of LiCl
Station 11 (Solutions Unit 9)
• What is the volume of solution if the molarity is
0.45M and 0.15 moles of solute are dissolved?
a)
b)
c)
d)
e)
0.33 L of solution
0.33 mL of solution
3.00 L of solution
3.00 mL of solution
None of these
Station 11 (Solutions Unit 9)
• What is the volume of solution if the molarity is
0.45M and 0.15 moles of solute are dissolved?
a)
b)
c)
d)
e)
0.33 L of solution
0.33 mL of solution
3.00 L of solution
3.00 mL of solution
None of these
Station 12 (Acid/Base Unit 10)
• According to the Arrhenius theory a substance
that releases a hydrogen ion is classified as a(n)
a)
b)
c)
d)
e)
Acid
Base
Conjugate Acid
Conjugate Base
None of these
Station 12 (Acid/Base Unit 10)
• According to the Arrhenius theory a substance
that releases a hydrogen ion is classified as a(n)
a)
b)
c)
d)
e)
Acid
Base
Conjugate Acid
Conjugate Base
None of these
Station 13 (Acid/Base Unit 10)
• Consider the reaction:
NH3(aq) + H2O(l)  NH4+(aq) + OH-(aq)
What species is the conjugate acid?
a)
b)
c)
d)
e)
NH3
H2O
NH4+
OHNone of these
Station 13 (Acid/Base Unit 10)
• Consider the reaction:
NH3(aq) + H2O(l)  NH4+(aq) + OH-(aq)
What species is the conjugate acid?
a)
b)
c)
d)
e)
NH3
H2O
NH4+
OHNone of these
Station 14 (Acid/Base Unit 10)
• Calculate the [H+] in a solution that has a pOH
of 13.4.
a)
b)
c)
d)
e)
3.98x10-14 M
2.51x10-1 M
3.98 M
2.51x1013 M
None of these
Station 14 (Acid/Base Unit 10)
• Calculate the [H+] in a solution that has a pOH
of 13.4.
a)
b)
c)
d)
e)
3.98x10-14 M
2.51x10-1 M
3.98 M
2.51x1013 M
None of these
Station 15 (Acid/Base Unit 10)
• A solution with a hydrogen ion concentration of
4.6x10-8 M has a pH between
a)
b)
c)
d)
e)
6.67
7.34
-7.34
13.3
None of these
Station 15 (Acid/Base Unit 10)
• A solution with a hydrogen ion concentration of
4.6x10-8 M has a pH between
a)
b)
c)
d)
e)
6.67
7.34
-7.34
13.3
None of these
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