The Kinetics of the Hydrolysis of Methyl Methanoate, CH₃COOCH₃, in Aqueous

question 2

Multiple Choice

The kinetics of the hydrolysis of methyl methanoate, CH₃COOCH₃, in aqueous solution were investigated by measuring the concentration of the ester after different time intervals. The reaction was found to be first order in the concentration of the ester. Use the data below to determine the rate constant for the reaction.
$\begin{array}{lllllll}\text { time, } & 0 & 1800 & 3600 & 5400 & 7200 & 9000 \\t / \mathrm{s} & & & & & & \\\text { concentration, } & 0.300 & 0.191 & 0.135 & 0.081 & 0.055 & 0.035 \\c /\left(\mathrm{mol} d \mathrm{~m}^{-3}\right) & & & & &\end{array}$

• A) 2.38 ? 10^-4 s^-1
• B) 7.87 ? 10^-4 s^-1
• C) 1.01 ? 10^-4 s^-1
• D) 9.54 ? 10^-4 s^-1

Understand the theories and stages of moral development across different cultures and genders.

Recognize effective parenting styles and their impact on adolescent behavior and development.

Identify the factors influencing friendship and peer group formation during adolescence.

Understand the psychological and social challenges of emerging adulthood.

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