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Jaylin Esparza
Chemistry
28 March, 20:05
If the pH is 4.5, what is the pOH?
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Donna Christian
28 March, 20:10
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PH+pOH=14
4.5+pOH=14
pOH=14-4.5
pOH = 9.5
We know that
[H⁺][OH⁻]=10⁻¹⁴, so
-log ( [H⁺][OH⁻]) = - log10⁻¹⁴
-log [H⁺] + ( - log[OH⁻]) = - log10⁻¹⁴,
- log [H⁺] = pH
- log[OH⁻] = pOH
- log10⁻¹⁴ = - (-14) log10=14*1=14
pH + pOH = 14
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