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Part At a certain temperature, the pH of a neutral solution is 7.61. What is the value of K, at that temperature? Express you
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Answer #1

Given:

pH = 7.61

use:

pH = -log [H+]

7.61 = -log [H+]

[H+] = 2.455*10^-8 M

Since solution is neutral.

[OH-] = [H+]

= 2.455*10^-8 M

Use:

Kw = [H+][OH-]

= (2.455*10^-8)*(2.455*10^-8)

= 6.03*10^-16

Answer: 6.0*10^-16

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