The absorbances of solutions containing K2CrO4 in 0.05 M KOH were measured in a 1.0-cm cell of 375 nm. The following results were obtained: Calculate the concentration of K2CrO4 (g/L) if the A is 0.550.

The absorbances of solutions containing K2CrO4 in 0.05 M KOH were measured in a 1.0-cm cell of 375 nm. The following results were obtained: Calculate the concentration of K2CrO4 (g/L) if the A is 0.550.

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter8: An Introduction To Optical Atomic Spectrometry

Section: Chapter Questions

Problem 8.2QAP

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Question

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The absorbances of solutions containing K₂CrO₄ in 0.05 M KOH were measured in a 1.0-cm cell of 375 nm. The following results were obtained:

Calculate the concentration of K₂CrO₄ (g/L) if the A is 0.550.

Conc. of
K,CrO„ g/L
A at 375 nm
0.0050
0.123
0.0100
0.247
0.0200
0.494
0.0300
0.742
0.0400
0.991

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