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The pOH of an aqueous solution at 25°C was found to be 9.60. The pH of this solution is The hydronium ion concentration is Th

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Answer #1

Given:

pOH = 9.60

use:

PH = 14 - pOH

= 14 - 9.60

= 4.40

use:

pH = -log [H+]

4.40 = -log [H+]

[H+] = 3.981*10^-5 M

use:

pOH = -log [OH-]

9.60 = -log [OH-]

[OH-] = 2.512*10^-10 M

Answers:

pH = 4.40

[H+] = 4.0*10^-5 M

[OH-] = 2.5*10^-10 M

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