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Study Of Acids, Bases and Salts — Chemistry STD 10 — Question

ICSE BoardEnglish MediumSTD 10ChemistryStudy Of Acids, Bases and Salts2 Marks
Question
Define pH.
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Answer

The pH of a solution is defined as the negative logarithm (base $10$) of the hydronium ion concentration present in the solution.
$pH =-\log _{10}\left[ H _3 O +\right]$

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