CHEM 102 Winter 18 Exam 3 (B) Questions and Answers
Potentially useful data:
x
2 a
1. Please choose the letter “B” as your answer for this question.
2. Consider the following endothermic chemical equilibrium. What change below would cause an increase in the I2 (g) concentration...
CHEM 102 Winter 18 Exam 3 (B) Questions and Answers
Potentially useful data:
b b 2 4 ac
x
2a
1. Please choose the letter “B” as your answer for this question.
2. Consider the following endothermic chemical equilibrium. What change below would
cause an increase in the I2 (g) concentration?
2 NOI (g) ⇌ 2 NO (g) + I2 (g)
a) decreasing the temperature
b) adding more NO
c) increasing the pressure
d) adding more NOI
e) All of the above.
o –9
3. At 25 C, an aqueous solution has [H3O+] = 3.1 × 10 M. What statement is
CORRECT?
-
a) The solution does not contain any HO ions.
b) The pH of the solution is 7.5.
c) The solution is basic.
d) The solution has a hydronium ion concentration greater than that of a neutral solution.
–7
e) The solution has a hydroxide ion concentration less than 1.0 × 10 M.
4. Which of the following chemical species is amphoteric?
a) CO32-
b) CH3COOH
c) NH4⁺
d) CH4
Page 1 of 6
, -
e) HSO4
Page 2 of 6
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