A student needs to prepare a buffer solution of propanoic acid and its sodium salt with…
Chemistry · JEE Main · NTA Exams — Equilibrium
A student needs to prepare a buffer solution of propanoic acid and its sodium salt with pH 4. The ratio of \(\frac{\left[\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{COO}^{-}\right]}{\left[\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{COOH}\right]}\)required to make buffer is ____ .
Given: Ka(CH3CH2COOH) = 1.3 × 10–5 (JEE Main 2022)
Given: Ka(CH3CH2COOH) = 1.3 × 10–5 (JEE Main 2022)
- 0.03
- 0.13
- 0.23
- 0.33
Answer
(B) 0.13
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