A) 7.302
B) 9.302
C) 8.302
D) 10.302
Correct Answer: C
Solution :
\[pH=-\log \,\,{{K}_{a}}+\log \frac{[KCN]}{[HCN]}\] \[pH=-\log \,[5\times {{10}^{-10}}]+\log \left( \frac{0.15}{1.5} \right)=8.302\]You need to login to perform this action.
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