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A buffer solution is prepared in which t...

A buffer solution is prepared in which the concentration of `NH_(3)` is 0.30 M and the concentration of `NH_(4)^(+)` is 0.20 M. If the equilibrium constant, `K_(b)` for `NH_(3)` equals `1.8xx10^(-5)`, what is the pH of this solution ? (log 2.7 = 0.43)

A

8.73

B

9.08

C

9.43

D

11.72

Text Solution

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The correct Answer is:
C
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