Calculate the pH and the equilibrium
concentration of S2- in a
7.90×10-2 M hydrosulfuric
acid solution, H2S (aq).
For H2S, Ka1 =
1.0×10-7 and Ka2 =
1.0×10-19
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Calculate the pH and the equilibrium concentration of S2- in a 7.90×10-2 M hydrosulfuric acid solution,...
Hydrosulfuric acid, also known as hydrogen sulfide, is a diprotic acid. Its two-stage ionization is shown below: H2S(aq) ⇆ H + + HS- (aq) Ka1 = 5.70x10-8 HS- (aq) ⇆ H + + S2- (aq) Ka2 = 1.0x 10-9 a. Calculate the concentration of HS- ion in a 0.222 M H2S solution. b. Determine the pH of the solution. c. Determine the S2- concentration. Please write out all answers step-by-step :-)
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