From the stock solution (0.040 M), pipet 0.00, 2.00, 5.00, 10.00, 15.00 and 20.00 aliquots into 100 mL volumetric flasks. Develop the color (royal blue) by adding enough NH3 solution to form Cu(NH3)42+ complex. Add 10 mL excess to stabilize to complex. Dilute to the desired volume. Determine the concentration of each standard solution and tabulate.

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
Chapter14: Applications Of Ultraviolet-visible Molecular Absorption Spectrometry
Section: Chapter Questions
Problem 14.6QAP: The accompanying data (1.00-cm cells) were obtained for the spectrophotometric titration 10.00 mL of...
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CuSO4
From the stock solution (0.040 M), pipet 0.00, 2.00, 5.00, 10.00, 15.00 and 20.00 aliquots into 100 mL volumetric flasks. Develop the color (royal blue) by adding enough NH3 solution to form Cu(NH3)42+ complex. Add 10 mL excess to stabilize to complex. Dilute to the desired volume. Determine the concentration of each standard solution and tabulate.

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