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Chemistry · EQUILIBRIUM
हिन्दीWhat is the \( [\text{H}^+] \) concentration in a solution containing \( 0.05\text{ M} \) acetic acid and \( 0.05\text{ M} \) sodium acetate? (Given: \( K_a \text{ of } \text{CH}_3\text{COOH} = 1.8 \times 10^{-5} \))
Correct answer · Option 1
\( 1.8 \times 10^{-5}\text{ M} \)
Explanation
From \( [\text{H}^+] = K_a \frac{[\text{Acid}]}{[\text{Conjugate base}]} \), since \( [\text{Acid}] = [\text{Salt}] = 0.05\text{ M} \), \( [\text{H}^+] = K_a = 1.8 \times 10^{-5}\text{ M} \).
