During a spectroscopic evaluation of the several solutions of C6H5CH=CHCCl₂ in ethanol using a 1.0 cm spectrophotometric cell, different values of absorbance (A) were obtained, which are given in the following table: 105 × conc. mol dm-3 A time min A 0.446 0.080 0 0.560 0.812 1.335 0.145 0.240 When the reaction of C6H₂CH=CHCCl₂ with C₂H5O in an ethanolic medium is followed spectroscopically at a convenient wavelength (2), the following results are found: 40 0.283 80 0.217 2.105 0.305 0.378 120 1.711 0.168 140 0.149 The values of & at λ and the rate constant for that reaction are:

During a spectroscopic evaluation of the several solutions of C6H5CH=CHCCl₂ in ethanol using a 1.0 cm spectrophotometric cell, different values of absorbance (A) were obtained, which are given in the following table: 105 × conc. mol dm-3 A time min A 0.446 0.080 0 0.560 0.812 1.335 0.145 0.240 When the reaction of C6H₂CH=CHCCl₂ with C₂H5O in an ethanolic medium is followed spectroscopically at a convenient wavelength (2), the following results are found: 40 0.283 80 0.217 2.105 0.305 0.378 120 1.711 0.168 140 0.149 The values of & at λ and the rate constant for that reaction are:

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter26: Molecular Absorption Spectrometry

Section: Chapter Questions

Problem 26.32QAP

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