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POH of 7.0

Solution is found to have a pH of 7.00. What is its pOH?

a. 3.20 b. 7.00
c. 14.00 d. 10.80

$[H^+] \times [OH^-] = 10^{-14}$

[] = concentration.

$pH = -log([H^+])$

so if the pH = 7 then $[H^+] = 10^{-7}$

$pOH = -log([OH^-])$

Therefore,

pH + pOH = what?

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