Principles of Instrumental Analysis, 6th Edition
Principles of Instrumental Analysis, 6th Edition
6th Edition
ISBN: 9788131525579
Author: Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher: Cenage Learning
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Chapter 6, Problem 6.18QAP
Interpretation Introduction

Interpretation:

The concentration required for the 0.196 transmittance to be increased by factor 3 when a 1 cm cell was used should be determined.

Concept introduction:

The percent of light passing through the sample can be reported in a transmittance. In order to calculate the percent transmittance, the transmittance is multiplied by 100.

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Find the concentration of a solution with a transmittance of 0.27 AU and molar absorptivity of 3.65 x 104 M- cm in a 1.00 cm cell.
.A 8 × 10-5 M solution of potassium permanganate has a transmittance of 45% when measured in 2.0 cm cell at wavelength of 526 nm. Calculate (a) the absorbance of this solution and (b) the molar absorptivity of KMnO4.
A 7.25 x 10 ^-5 M solution of potassium permanganate has a transmittance of 44.1% when measured in a 2.10-cm cell at a wavelength of 525 nm. Calculate (a) the absorbance of this solution and (b) the molar absorptivity of KMnO4
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