Calculate the pH of each of the following diprotic acid solutions is 25C, ignoring second deprotonations...

Question

Question

Calculate the pH of each of the following diprotic acid solutions is 25C, ignoring second deprotonations only when that approximation is justified.

a) 0.10 M H2Saq

b) 0.15 M H2C4H4O6aq

c) 1.1E-3 M H2TeO4aq Ka1=2.1E-8, Ka2=6.5E-12

Please don't hestitate to drop some knowledge on me :)

Answer 1

Answer #1

Second deprotonation [HC4H406l-0.01175 M-x-0.01175 M (assume x <<1) total [H O1 0.01175 M7.108 x104 M 0.01246M pH . log[H30+-

Answer 2

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