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16-11-2022
Chemistry

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A buffer olution with a pH of 4. 14 contain 0. 166 mol of a weak acid and Zmol of a alt of it conjugate bae. When 175 cm3of a 0. 0420 mol dm─3olution of hydrochloric acid wa added to thi buffer olution the pH changed by 0. 360 pH unit. Ue thi information to calculate the value of Ka for the weak acid

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