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3. Which solution has the highest boiling point: 1.0 M CH3CH2OH or 1.0 M NaBr? Justify...

3. Which solution has the highest boiling point: 1.0 M CH3CH2OH or 1.0 M NaBr? Justify your answer and explain how this relates to vapor pressure.

12. For the reaction: H2 (g) + Br2 (g) ? 2 HBr (g),

K = 4.0 x 10-2.

For the reaction :: 2 HBr (g) ? H2 (g) + Br2 (g)

K =:

a. 4.0 x 10-2

b. 5

c. 25

d. 2.0 x 10-1


24. Does the pH of a solution increase, decrease, or stay the same when you add solid ammonium chloride to a solution of 0.10 M NH3?


35. Classify each reactant as either a Bronsted-Lowry acid or base for the following reactions:

a)      HCN + H2O  ? CN- + H3O+

b)      CH3NH2 + H2O  ? CH3NH3+ + OH-

46. How many times more acidic is a solution with pH = 4.80 as compared to one with pH = 6.33?


(please explain/show work)


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