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A Titration of 200 ×\times 10-5,Ka2 = 3 ×\times 10-9

Question 77

Multiple Choice

A titration of 200.0 mL of 1.32 M H2A was done with 1.00 M NaOH.For the diprotic acid H2A,Ka1 = 2.5 ×\times 10-5,Ka2 = 3.1 ×\times 10-9.Calculate the pH before any 1.00 M NaOH has been added.


A) 11.76
B) 4.48
C) 9.52
D) 8.96
E) 2.24

Correct Answer:

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