a) The consecutive equilibria: CO2(g) <=>CO2(aq) + H2O(l) <=>H2CO3(aq) <=>H+(aq) + HCO3-(aq), explain why: A. carbonated...

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a) The consecutive equilibria: CO2(g) <=>CO2(aq) + H2O(l) <=>H2CO3(aq) <=>H+(aq) + HCO3-(aq), explain why: A. carbonated...

a) The consecutive equilibria:

CO2(g) <=>CO2(aq) + H2O(l) <=>H2CO3(aq) <=>H+(aq) + HCO3-(aq), explain why:

A. carbonated beverages are less acidic than pure water.

B. carbonated beverages contain measurably less water than the same volume of pure water.

C. rainwater is slightly acidic

b) A 1.0 M solution of a weak monoprotic acid with Ka = 1.0 10-6 would have a pH of:

A. 1 B. 2 C. 3 D. 6

c) Ascorbic acid is a diprotic acid with Ka1 = 1.0 10-5, and Ka2 = 5 10-12. The pH of a 0.1 M solution of ascorbic acid is closest to:

A. 7.0 B. 3.0 C. 10-5 D. 2.8

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