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what is pH?

AThe negative logarithm of the hydrogen ion concentration
BThe positives logarithm of the hydrogen ion concentration
CThe negative logarithm of the hydroxide ion concentration
DThe positive logarithm of the hydroxide ion concentration

Verified Answer :

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pH = -log[H+]
That is, pH is the negative logarithm of the hydrogen ion concentration.

pOH = -log[OH-]
pOH is the negative logarithm of the hydroxide ion concentration.

The correct answer to your question is a. The negative logarithm of the hydrogen ion concentration.

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