Chemistry

Walsh

3 March, 04:44

For the reaction h3po4 (aq) h2po4 - (aq) + h + (aq) ∆h° = - 14.2 kj/mol. what is the ka of h3po4 at 60 °c? (a) 4.2  10-3 (b) 6.8  10-3 (c) 8.5  10-3 (d) 1.8  10-2

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