Anode_lab_6 - Experiment 6 Electrochemistry Name: _Rubeshan...

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Experiment 6 – Electrochemistry Name: ____Rubeshan Sathananthan___ _ Partner _______Mihir patel Day: ______Tuesday _______ Time: ______9.10 -11.00 am____________ TA Name: _____Kelvin________
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Results, Discussion and Questions Part 1 Anode Cathode Exp. Voltage Theor. Voltage (V) 1 Mg (s) Mg +2 + 2e - Cu +2 + 2e - Cu 1.55 2.7119 2 Mg (s) Mg +2 + 2e - Zn +2 + 2e - Zn 0.56 1.6082 3 Mg (s) Mg +2 + 2e - Fe +2 + 2e - Fe 0.95 1.923 4 Zn (s) Zn +2 + 2e - Cu +2 + 2e - Cu 0.90 1.1037 5 Fe (s) Fe +2 + 2e - Cu +2 + 2e - Cu 0.55 0.7889 6 Zn (s) Zn +2 + 2e - Fe +2 + 2e - Fe 0.29 0.3148 Part 2 Voltage before addition of NH 3 0 V Voltage after addition of NH 3 0.3V Questions 1. Why is no voltage observed before the porous cup is immersed in the glass electrode jar? There is no voltage observed before the porous cup was immersed in the glass electrode jar because there was no barrier between the two electrodes which means the electrons could flow freely between them. 2. If a voltaic cell were constructed with two copper half cells and the concentrations of Cu 2+ were the same in each half-cell, what would the measured voltage be? If the Cu 2+ concentration in the anode half-cell were 0.0020 mol L
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Anode_lab_6 - Experiment 6 Electrochemistry Name: _Rubeshan...

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