Find a rate expression for the reaction, Chemical Engineering

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Find a Rate Expression for the Reaction

The saponification of the ester propargyl acetate, A, with base, B, was studied by Myers, Collett, and Lazzell using a conductivity technique that follows the course of the reaction.  Conductivity, C(t), is related to the conversion of the base through the relation:

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They report the data in the table below for a solution in a batch reactor that is initially 0.00873 N ester and 0.00673 N base.  Find a rate expression for the reaction that is consistent with these data, assuming mass-action kinetics. Solve for k.

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