CHE 111L Lecture Notes - Lecture 12: Reduction Potential, Electrochemistry, Voltmeter
30 Jul 2018
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Document Summary
The purpose of this experiment was to determine the reduction potentials of several metals by assembling microvoltaic cells using the computer with interface as voltmeter. The procedure for this experiment can be found on pages 73-75 in general chemistry che111l. Carbon copies of the data table have been attached to the back of this lab report. Calculations: predicted potentials (v) ecell=ecathode-eanode, fe/zn: -0. 603v-(-0. 923v) = 0. 320v, zn/ag: 0. 425v-(-0. 923v) = 1. 348v, fe/ag: 0. 425v-(-0. 603v) = 1. 028v. Carbon copies of the summary of results tables have been attached to the back of this lab report. The purpose of this experiment, to determine the reduction potentials of several metals by assembling microvoltaic cells using the computer with interface as voltmeter, was fulfilled. The standard reduction potentials for ag, cu, h2, fe, and zn were found to be 0. 425v, 0. 00v, The predicted potentials for fe/zn, fe/ag, and zn/ag were found to be 0. 320v, 1. 028v, and 1. 348v respectively.
