1. At a certain temperature, a 0.01 M solution of acetic ethyl ester is saponified by a 0.002 M solution of NaOH alkali in 23 minutes by 10%. After how many minutes will it be saponified to the same extent with a 0.005 M NaOH solution, if the ester saponification reaction is a second-order reaction, and the alkali is completely dissociated.

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