CHEM 1951 Lecture Notes - Standard Hydrogen Electrode, Potassium Nitrate, Nernst Equation

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5 Jul 2013
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Curt kim, jonathan lee, keshav mantha, bobbie sheng. Goal: to measure the voltage of two voltaic cells, one with standard concentrations and the other with non-standard concentrations, and compare the readings to the calculated theoretical voltages. Procedure: there were two parts to this experiment: part a, a standard voltaic cell with 1. 0m. Cuso4 and 1. 0m zn(no3)2, and part b, a non-standard voltaic cell with 0. 5m cuso4 and 0. 5m. In part a, 75ml of the 1. 0m copper sulfate solution and 15ml of the 1. 0m zinc nitrate solution were prepared. The zinc nitrate was poured into the smaller, semipermeable compartment of the voltaic cell and copper sulfate was poured into the outer jar. Then, the copper electrode was clipped into place in the copper sulfate solution, and the zinc electrode was placed in the zinc nitrate solution. A voltmeter was then used to take a voltage reading of the cell.