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Calculate pH of [HS ], [S2–], [Cl ] in a solution which is 0.1 M HCl & 0.1 M H2S given that Ka1 (H2S) = 10–7, Ka2 (H2S) = 10–14 also calculate α1 & α2.

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= 10–6 × 10–1 × 10–13 = 10–20 M

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