In a common car battery, six identical cells each carry out the following reaction where two moles of e- are transferred from Pb to Pb4+:
Pb + PbO2 + 2HSO4– + 2H+ → 2PbSO4 + 2H2O (E° = 2.04 V)
For such a cell, calculate ΔG° at 25°C
A) (-98 ± 1) kJ
B) (-394 ± 1) kJ
C) (-787 ± 1) kJ
D) (-197 ± 1) kJ
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Calculate Ecell at 298K for a concentration cell made with silver electrodes in silver nitrate solutions. One cell contains 0.25 M Ag+ solution and the other a 1.7 M Ag+ solution.
A) (8.49 ± 0.02) x 10 -1 V
B) (7.51 ± 0.02) x 10 -1 V
C) (4.92 ± 0.02) x 10 -2 V
D) (-4.92 ± 0.02) x 10 -2 V
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Calculate the ΔG° for the dissociation of acetic acid (CH3COOH) in water at 298 K
A) (-27 ± 0.5) kJ
B) 0.000 kJ
C) (50.0 ± 0.5) kJ
D) (27 ± 0.5) kJ
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In a common car battery, six identical cells each carry out the following reaction where two...
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Calculate Ecell at 298K for a concentration cell made with silver electrodes in silver nitrate solutions. One cell contains 0.25 M Ag+ solution and the other a 1.7 M Ag+ solution. (8.49 ± 0.02) x 10 -1 V (-4.92 ± 0.02) x 10 -2 V (4.92 ± 0.02) x 10 -2 V (7.51 ± 0.02) x 10 -1 V
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