Postlab 6 Ecells Wk 2

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University of Wisconsin, Madison *

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654

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Electrical Engineering

Date

Jan 9, 2024

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docx

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1

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Lab 6 Ecells Wk 2 1. Put in measured voltage for the cells. Go over expected values you obtained for the pre-lab assignment and fix any mistakes if there is any Electrochemical Cell Expected (V) Measured (V) Cu I Cu2+ (1.0 x 10^-2 M) I I Cu2+ (0.10 M) I Cu 0.03 .023 Cu I Cu2+ (1.0 x 10^-3 M) I I Cu2+ (0.10 M) I Cu 0.06 .011 Cu I Cu2+ (1.0 x 10^-4 M) I I Cu2+ (0.10 M) I Cu 0.09 .096 Cu I Cu2+ (1.0 x 10^-5 M) I I Cu2+ (0.10 M) I Cu 0.12 .078 Cu I Cu2+ (unknown 1) I I Cu2+ (0.10 M) I Cu - .042 Cu I Cu2+ (unknown 2) I I Cu2+ (0.10 M) I Cu - .038 2. Obtain a linear fit between the measured voltage vs logQ. Then use the obtained linear equation to determine concentrations of the unknown solutions. Concentration of unknown 1: 0.04 Concentration of unknown 2: 0.03
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