A) pH =4.70
B) pH< 4.70
C) pH of solution will be equal to pH of acetic acid
D) 4.76 < pH< 5.0
Correct Answer: D
Solution :
\[pH=p{{K}_{a}}+\log \frac{\text{ }\!\![\!\!\text{ salt }\!\!]\!\!\text{ }}{\text{ }\!\![\!\!\text{ acid }\!\!]\!\!\text{ }}\] \[=4.76+\log \frac{\frac{7.5}{500}}{\frac{5}{500}}=4.7+\log 1.5=4.87\] Hence correct answer is 4.76 < pH < 5.0You need to login to perform this action.
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