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October 30, 2014

October 30, 2014

Posted by **Carrie** on Wednesday, December 1, 2010 at 3:33pm.

Calculate the pH of each solution given the following [H3O+] or [OH -] values.

(a) [H3O+] = 1.5 10-8 M

1.0E-7 is what I got

(b) [H3O+] = 5.3 10-6 M

(c) [OH -] = 4.8 10-2 M

I get 7.0

(d) [OH -] = 9.0 10-3 M

Thank you.

- Chem -
**DrBob222**, Wednesday, December 1, 2010 at 4:18pmPerhaps you have misread the question. For the first one,

(H3O^+) = 1.5E-8

pH = -log(H^+)

pH = -log(1.5E-8)

pH = -(-7.82)

pH = 7.82.

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