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Answer to Question #307040 in Physical Chemistry for Mona
Question #307040
Hydrofluoric acid has a Ka value of 7.2x10−4. What is the pH of a 0.04M solution of hydrofluoric acid
Expert's answer
HF (aq) + H2O (l) ↔ H3O+ (aq) + F- (aq)
ICE table:
x = 0.005 mol/L H3O+
pH = - log (0.005) = 2.3
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