Hydrolysis of methyl acetate in aqueous solution has been studied by titrating the liberated acetic acid against sodium hydroxide. The concentration of the ester at different times is given below.
| t/min ||0 ||30 ||60 || 90|
|`C//mol L^(-1)` || 0.8500 || 0.8004 || 0.7538 || 0.7096|
Show that it follows a pseudo first order reaction, as the concentration of water remains nearly constant `(55 mol L^(–1))`, during the course of the reaction. What is the value of `k′` in this equation? Rate `= k′ [CH_3COOCH_3][H_2O]`