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Explain why pH of 0.1 molar solution of ...

Explain why pH of 0.1 molar solution of acetic acid will be higher than that of 0.1 molar solution of HCl ?

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Acetic acid is a weak electrolyte. It is not completely ionized and hence gives less `H^(+)` ion concentration. HCl is a strong acid. It is completely ionized giving more `H^(+)` ion concentration . As `pH = - log [H^(+)] ` , less the `[H^(+)]`, greater will be the pH.
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