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Calculate the pH and the equilibrium concentration of Se2- in a 8.75×10-2 M hydroselenic acid solution,...

Calculate the pH and the equilibrium concentration of Se2- in a 8.75×10-2 M hydroselenic acid solution, H2Se (aq).

For H2Se, Ka1 = 1.3×10-4 and Ka2 = 1.0×10-11

pH =
[Se2-] = M

Calculate the pH and the equilibrium concentrations of HS- and S2- in a 0.0425 M hydrosulfuric acid solution, H2S (aq).

For H2S, Ka1 = 1.0×10-7 and Ka2 = 1.0×10-19

pH =
[HS-] = M
[S2-] =

M

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