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PH of a buffer

6. The Ka of citric acid is 7.4 x 10-4. What is the pH of a buffer made form 0.1 M citric acid and 0.1 M monosodium citrate?

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The Ka of citric acid is 7.4 x 10-4. What is the pH of a buffer made form 0.1 M citric acid and 0.1 M monosodium citrate?

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