Phosphoric acid has three protons that can ionize. The Kas are as follows: Ka1 = 6.9...

Question

Question

Phosphoric acid has three protons that can ionize. The Kas are as follows:
Ka1 = 6.9 x 10-3
Ka2 = 6.4 x 10-8

Ka3 = 4.8 x 10-11
Which of these constants would you use to calculate the pH of a 0.1 M solution of H3PO4?

A. Ka1, Ka2, and Ka3

B. Ka1, and Ka2
C. Ka1 only
D. Ka2, and Ka3

E. Ka1, and Ka3

Answer 1

Answer #1

- Hp Op (aq) at Hot (aq) + sport (19) This only Kal is to be ensed to calenlate the ph of the H₂88 solution.

Answer 2

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