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CHEMISTRY 101 FINAL EXAM IVY TECH NEWEST 2025/2026 ACTUAL
EXAM WITH COMPLETE QUESTIONS AND CORRECT DETAILED
ANSWERS (100% VERIFIED ANSWERS) |ALREADY GRADED A+|
||PROFESSOR VERIFIED||
Aqueous nitric acid and ammonia can be reacted to make
ammonium nitrate. When performing the reaction, great care must
be taken to add the reactants very slowly because the
temperature of the mixture can increase rapidly. Which of the
following best describes the reaction of nitric acid and ammonia?
a. The reaction is endothermic, and the ΔH for the reaction is
positive
b. The reaction is exothermic, and the ΔH for the reaction is
positive
c. The reaction is exothermic, and the ΔH for the reaction is
negative
d. The reaction is endothermic, and the ΔH for the reaction is
negative - ANSWER-c. The reaction is exothermic, and the ΔH for
the reaction is negative
When cooking in the same pan and on the same burner setting,
250 mL (about 1 cup) of water will start to boil more quickly than 1
L (about 4 cups) of water. This is because
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a. 1 cup of water has a lower specific heat capacity than 4 cups of
water
b. 1 cup of water has a higher specific heat capacity than 4 cups
of water
c. 1 cup of water has a lower heat capacity than 4 cups of water
d. 1 cup of water has a higher heat capacity than 4 cups of water -
ANSWER-c. 1 cup of water has a lower heat capacity than 4 cups
of water
Two aqueous solutions are each at 25 °C. When the solutions are
mixed inside a perfectly insulated calorimeter, the temperature of
the mixture increases to 48 °C. If we assume that the calorimeter
absorbs no heat from the reaction, in this experiment
a. the solution mixture is the system, and the calculated qreaction
will be negative
b. the solution mixture is the system, and the calculated qreaction
will be positive
c. the reaction is the system, and the calculated qreaction will be
negative
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d. the reaction is the system, and the calculated qreaction will be
positive - ANSWER-c. the reaction is the system, and the
calculated qreaction will be negative
How much energy must be added to 250.0 mL of water (specific
heat 4.184 J/g °C) to raise its temperature from 20.0 °C to 100.0
°C? - ANSWER-q=mcT... (250)(4.184)(100-20)= 83.6 kJ
50.0 g of 1.25 M HNO3 and 50.0 g of 1.50 M KOH both have a
starting temperature of 22.5 °C. When the two solutions are
added to a calorimeter, the temperature reaches a maximum of
31.1 °C. Assuming that the final solution has a specific heat of
4.184 J/g °C, and that no heat escapes from or is absorbed by the
calorimeter, what is the qreaction? - ANSWER-q=msT...
(50+50)(4.1894)(31.1-22.5)= -3.598 kJ
Given the following information, what is the standard enthalpy
change for the reaction?O2(g) + 2CO(g)--> 2CO2(g)
ΔHf° CO(g) = -110.52 kJ/mol
ΔHf° O2(g) = 0 kJ/mol
CHEMISTRY 101 FINAL EXAM IVY TECH NEWEST 2025/2026 ACTUAL
EXAM WITH COMPLETE QUESTIONS AND CORRECT DETAILED
ANSWERS (100% VERIFIED ANSWERS) |ALREADY GRADED A+|
||PROFESSOR VERIFIED||
Aqueous nitric acid and ammonia can be reacted to make
ammonium nitrate. When performing the reaction, great care must
be taken to add the reactants very slowly because the
temperature of the mixture can increase rapidly. Which of the
following best describes the reaction of nitric acid and ammonia?
a. The reaction is endothermic, and the ΔH for the reaction is
positive
b. The reaction is exothermic, and the ΔH for the reaction is
positive
c. The reaction is exothermic, and the ΔH for the reaction is
negative
d. The reaction is endothermic, and the ΔH for the reaction is
negative - ANSWER-c. The reaction is exothermic, and the ΔH for
the reaction is negative
When cooking in the same pan and on the same burner setting,
250 mL (about 1 cup) of water will start to boil more quickly than 1
L (about 4 cups) of water. This is because
,2|Page
a. 1 cup of water has a lower specific heat capacity than 4 cups of
water
b. 1 cup of water has a higher specific heat capacity than 4 cups
of water
c. 1 cup of water has a lower heat capacity than 4 cups of water
d. 1 cup of water has a higher heat capacity than 4 cups of water -
ANSWER-c. 1 cup of water has a lower heat capacity than 4 cups
of water
Two aqueous solutions are each at 25 °C. When the solutions are
mixed inside a perfectly insulated calorimeter, the temperature of
the mixture increases to 48 °C. If we assume that the calorimeter
absorbs no heat from the reaction, in this experiment
a. the solution mixture is the system, and the calculated qreaction
will be negative
b. the solution mixture is the system, and the calculated qreaction
will be positive
c. the reaction is the system, and the calculated qreaction will be
negative
, 3|Page
d. the reaction is the system, and the calculated qreaction will be
positive - ANSWER-c. the reaction is the system, and the
calculated qreaction will be negative
How much energy must be added to 250.0 mL of water (specific
heat 4.184 J/g °C) to raise its temperature from 20.0 °C to 100.0
°C? - ANSWER-q=mcT... (250)(4.184)(100-20)= 83.6 kJ
50.0 g of 1.25 M HNO3 and 50.0 g of 1.50 M KOH both have a
starting temperature of 22.5 °C. When the two solutions are
added to a calorimeter, the temperature reaches a maximum of
31.1 °C. Assuming that the final solution has a specific heat of
4.184 J/g °C, and that no heat escapes from or is absorbed by the
calorimeter, what is the qreaction? - ANSWER-q=msT...
(50+50)(4.1894)(31.1-22.5)= -3.598 kJ
Given the following information, what is the standard enthalpy
change for the reaction?O2(g) + 2CO(g)--> 2CO2(g)
ΔHf° CO(g) = -110.52 kJ/mol
ΔHf° O2(g) = 0 kJ/mol
