The saponification reaction between ethyl acetate and sodium hydroside was achieved according to the following reaction CH,COOC,H, +NaOH - CH,COONa+ CH,OH Aqueous solutions of each reactant (50 ml and 0.1 M) were put into a vessel and the conductance of the sohution was measured with 1 min intervals at diferent tenmperatures urtil the reaction was completed. According to the obtained time-conductance data, rate constants of the reaction at each tenperature were tabulated as in the following table (R=8.314 Jmol.K) (20 min.). 25 LA min ) 561 16 30 665.14 40 1380.22 45 1540.71 99227 a) Calculate the activation energy by drawing the related graph. b) Calculate the frequency factor. ) Discuss the change in conductance of the solution with respect to time.

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The saponification reaction between ethyl acetate and sodium hydroside was achieved
according to the following reaction
CH,COOC,H, +NaOH - CH,COONa+ CH,OH
Aqueous solutions of each reactant (50 ml and 0.1 M) were put into a vessel and the
conductance of the sohution was measured with 1 min intervals at diferent tenmperatures
urtil the reaction was completed. According to the obtained time-conductance data, rate
constants of the reaction at each tenmperature were tabulated as in the following table
(R=8.314 Jmol.K) (20 min.).
25
LA min ) 561 16
30
665.14
40
1380.22
45
1540.71
99227
a) Calculate the activation energy by drawing the related graph.
b) Calculate the frequency factor.
) Discuss the change in conductance of the solution with respect to time.
Transcribed Image Text:The saponification reaction between ethyl acetate and sodium hydroside was achieved according to the following reaction CH,COOC,H, +NaOH - CH,COONa+ CH,OH Aqueous solutions of each reactant (50 ml and 0.1 M) were put into a vessel and the conductance of the sohution was measured with 1 min intervals at diferent tenmperatures urtil the reaction was completed. According to the obtained time-conductance data, rate constants of the reaction at each tenmperature were tabulated as in the following table (R=8.314 Jmol.K) (20 min.). 25 LA min ) 561 16 30 665.14 40 1380.22 45 1540.71 99227 a) Calculate the activation energy by drawing the related graph. b) Calculate the frequency factor. ) Discuss the change in conductance of the solution with respect to time.
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