Values for phosphoric acid

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Question 1: If the pKa values for phosphoric acid are 2.15, 6.82, and 12.38, which form would predominate at pH5 and which would predominate at pH 10?

Question 2: You have made a buffer that is at pH 7 with a pKa = 6.8. What is it best suited to buffer against? If it is made to pH 6.2 instead, what is it best suited to buffer against now?

Reference no: EM132439455

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