Ionic EquilibriumHard
Question
pH of 0.01 M HS- will be:
Options
A.pH = 7 + 
B.pH = 7 -
C.pH = 7 + 
D.pH = 7 + 
Solution
HS- + H2O ⇋ H2S + OH-
∴ [OH-] = Ch =
∴ [H+] = 
or pH = 1/2[pKw + pKa + logC]
∴ [OH-] = Ch =
∴ [H+] = or pH = 1/2[pKw + pKa + logC]
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