A 100 mL sample of Cu²+ gave a wave height of 5.02 μA in a polarographic analysis when 0.200 mL of solution containing 19.4 Mm Cu²+ was added, the wave height increased to 7.94 µA. Find the concentration of Cu²+ in the unknown.

A 100 mL sample of Cu²+ gave a wave height of 5.02 μA in a polarographic analysis when 0.200 mL of solution containing 19.4 Mm Cu²+ was added, the wave height increased to 7.94 µA. Find the concentration of Cu²+ in the unknown.

Chemistry & Chemical Reactivity

9th Edition

ISBN:9781133949640

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter4: Stoichiometry: Quantitative Information About Chemical Reactions

Section4.8: Stoichiometry Of Reactions In Aqueous Solution-titrations

Problem 2RC

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Spectroanalytical Methods

Spectroanalytical methods measure the wavelength and intensity of radiations that are either emitted or absorbed by a molecular or atomic species. These methods are useful for evaluating the electronic or atomic arrangement of the molecules of a given analyte.

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2.3
A 100 mL sample of Cu²+ gave a wave height of 5.02 μA in a polarographic analysis
when 0.200 mL of solution containing 19.4 Mm Cu²+ was added, the wave height
increased to 7.94 µA. Find the concentration of Cu²+ in the unknown.

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