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26 July, 13:24

If the hydrogen ion concentration is 8.4 x 10-7, what is the pH?

pH = - log ([HT]

Your answer:

O

7.94

22.94

5.06

6.08

+1
Answers (1)
  1. 26 July, 13:48
    0
    7.94

    Explanation:

    pH = - log ([H+])

    = - log (8.4*10^-7)

    = - log (8.4) + log (10^-7)

    = - 0.9243-7

    = - 7.9243

    = - 7.9
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