Answer to Question #307984 in General Chemistry for Jaja

Question #307984

Calculate the sulfide-ion concentration of a 0.5 F HCl solution which has been

saturated with H2S at 25°C.

Expert's answer

H2S(aq) + 2H20 (l) -----> 2H30+ (aq) + S2- (aq)

Ka = 1.1 x 10 ^-21

pH = 0.5 [H2S] = 0.1 mol/L = 0.1M Initial 0.1

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