3. The reaction of ethyl acetate saponification with alkali is a second-order reaction. The initial concentrations of ether and alkali are 70 mol/m3. Using the data in the table, determine the value of the rate constant for this reaction
Time, t, min 5 10 20 40 60
Alkali concentration, mol/m 26 15 8.5 4.3 3

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