The saponification of the ester propargyl acetate, with base (B, OH) was studied by Myers, Collett, and

Question:

The saponification of the ester propargyl acetate, (A, H,C-C-C-O-C=CH).

with base (B, OH–) was studied by Myers, Collett, and Lazzell using a conductivity technique to follow the course of the reaction. Conductivity, C(t), is related to the conversion of the base through the relation Fraction base converted CB(t) C BO C(t) - C() C(0) - C()

They report the data in Table 6.P5 for a solution that is initially 0.00873 N ester and 0.00673 N base. Find a rate expression that is consistent with these data. t (min) 0 0.200 0.417 0.737 1.047 1.397 1.787 2.187 2.637 3.147 3.667 C 1.087 1.042 1.000 0.952 0.909 0.870