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For the diprotic weak acid H2A, Ka1 = 3.0 × 10^-6 and Ka2 = 7.6 ×...

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Question

Chemistry

For the diprotic weak acid H2A, Ka1 = 3.0 × 10^-6 and Ka2 = 7.6× 10^-9. What is the pH of a 0.0600 M solution of H2A? What are theequilibrium concentrations of H2A and A2– in this solution?

pH=?

[H2A]=?

[A2-]=?

Answer & Explanation Solved by verified expert
3.7 Ratings (456 Votes)
We have to use two equations H2A HA H I 00600 0 0 C x x x E 00600x x x Ka1 HAHH2A 30 106 x x 00600x 30 106 00600x x2 18 107 30 106 x    See Answer
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