7. Determine the reaction order
HCOOC2H5 NaOH = HCOONa C2H5OH
if the initial concentrations of ether and alkali are the same and equal to 0.01 mol / l. The concentration of alcohol at various points in time is given in the table.

Time, min 4 5 6
C2H5OH concentration, mol/l 3.1710-3 3.6610-3 4.4010-3

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