In a reaction, 5 g ethyl acetate is hydrolyzed per litre in the presence of dil. HCl in 300 min.If the reaction is of the first order and the initial concentration of ethyl acetate is 22 g L

Engineering

Chemistry

Reaction Mechanism and Molecularity

Question

In a reaction, 5 g ethyl acetate is hydrolyzed per litre in the presence of dil. HCl in 300 min.If the reaction is of the first order and the initial concentration of ethyl acetate is 22 g L^–1, the rate constant of the reaction is:

k = 8.6 × 10⁻⁴ min⁻¹

k = 1.4 × 10⁻⁴ min⁻¹

k = 6.9 × 10⁻⁴ min⁻¹

None of these

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a = 22 g L^–1
x = 5 g L^–1, t = 300 min
$k = \frac{2.3}{300 \min} \log \frac{22 g L^{- 1}}{(22 - 5) {gL}^{- 1}} = 8.6 \times 10^{- 4} \min^{- 1}$

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