Why is low pH acidic?

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Why is low pH acidic?

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Answer 1 · 2016-10-10T04:20:57

Because, by definition, a low $p H$ $pH$ indicates a high concentration of $hydronium ions$ $"hydronium ions"$ .

Explanation:

By definition, $p H = - {log}_{10} ([H_{3} O^{+}])$ $pH=-log_10([H_3O^+])$ . Given the logarithmic function, $H_{3} O^{+}$ $H_3O^+$ $=$ $=$ $10^{- p H}$ $10^(-pH)$ . And thus the more negative $p H$ $pH$ , the higher the concentration of $H_{3} O^{+}$ $H_3O^+$ . If you have difficult with this, you should review the logarithmic function.

See this [old answer.](https://socratic.org/questions/how-do-you-find-poh-from-ph)

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Why is low pH acidic?

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