Multiple Choice
For which of the following 0.10 M diprotic acids would the second dissociation affect the pH significantly?
A) H2A;Ka1 = 4.2 10-2,Ka2 = 1.8 10-7
B) H2B;Ka1 = 2.4 10-4,Ka2 = 6.1 10-8
C) H2C;Ka1 = 1.3 10-4,Ka2 = 5.2 10-9
D) H2D;Ka1 = 1.8 10-3,Ka2 = 9.3 10-4
E) The second dissociation never affects the pH significantly.
Correct Answer:

Verified
Correct Answer:
Verified
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