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pH of a Solution

Calculate the...

Question

Calculate the pH of $0.001$ M HCl solution.

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Solution

HCl is a strong acid , when dissolves into water it completely dissociates into $H^{+}$ and $C l^{-}$
pH = -log[ $H^{+}$ ]
pH = -log[ $0.001$ ]
pH = $3$

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