k4po
Answered

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What is the pOH of a solution of pH 3 acid? (Kw= 1.0 x 10-14)

Sagot :

Answer:

pOH = 11

Explanation:

The pH is an unit of concentration widely used in chemistry to find the quality of a solution.

To solve this question we must, as first, find the [H+] using the pH:

[H+] = 10^-pH

[H+] = 10^-3

Now, using kw:

kw = 1.0x10-14 = [H+] [OH-]

1.0x10-14 = [10^-3] [OH-]

[OH-] = 1.0x10-11

pOH = -log [OH-]

pOH = 11