AP EAMCET · Chemistry · Ionic Equilibrium
The \(\mathrm{pH}\) of \(0.05 \mathrm{M}\) acetic acid is \(\left(K_a=2 \times 10^{-5}\right)\)
- A 2
- B 11
- C \(10^{-3}\)
- D 3
Answer & Solution
Correct Answer
(D) 3
Step-by-step Solution
Detailed explanation
\begin{aligned} & \mathrm{CH}_3 \mathrm{COOH} \rightleftharpoons \mathrm{H}^{+}+\mathrm{CH}_3 \mathrm{COO}^{-} \\ & K_a=\frac{\left[\mathrm{H}^{+}\right]\left[\mathrm{CH}_3 \mathrm{COO}^{-}\right]}{\left[\mathrm{CH}_3…
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