Email a copy of 'A saturated solution of H2S in water has concentration of approximately 0.10 M. What is the pH of this solution and equilibrium concentrations of H2S, HS- and S2-? Hydrogen sulphide is a diprotic acid and its dissociation constants are Ka1 = 9.1 x 10-8, Ka2 = 1.3 x 10-13 mol L-1 respectively.' to a friend

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