Answer to Question #96802 in General Chemistry for rachel

Question #96802

Determine the pH of a 0.35 M aqueous solution of butylamine at 25.0 °C. The pKb of butylamine is 3.22.

Expert's answer

C( butylamine) = 0.35M= Cb

pKb=3.22 Kb=10^(-3.22)=0.0006

[OH-]= (Kb*Cb)^(1/2)=0.01449

pOH = -lg[0.01449] = 1.84

pH = 14 - pOH = 12.16

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