Question

3. Determine the half reactions for the following three calls. Indicate the number of electrons that are transferred in each case. (NOTE: Either include an image or use superscripts and subscripts. Your TAs will not grade this if not formatted properly. 1. ALH (SHE - but lust worry about the formation of H. You can skip the Pt). i. H.JAG iii. Al-Ag" 4. Per mole of the anode (og solid aluminum that is consumed de oxidized) when a voltaic cell is in operation, is the amount of work that the electrons can do as they pass through a motor on their way to the cathode directly dependent, or inversely dependent, or independent on the number of electrons that pass through the motor2 Provide a reasoning for your explanation. 5. When we recognize that the change in Gibbs free energy for a cell reaction is the maximum amount of electrical work that a voltaic cell can do per mole of reactants, we develop the following equation AG -- El for a spontaneous cell reaction? Explain what these signs What are the signs on AG and mean Questions Part 2 The overall reaction that occurs in the voltaic cell known as the lead storage battery is shown by the balanced equation 6 of these lined up in series produce a 12 V battery. Pb(s) + PbO (s) + 2H(aq) + 2HSO, -2PbSO (s) + 2H,00 A schematic drawing of a voltaic cell in a lead storage battery is shown below.

Answer 1

011/ 2A1+ 6HC 2413 + 3H2 Oxidation haly cell: (Al Reduction hay cell : (217t ta A* + 38 ) x2= 6€ - H2) X3 = be Redox het reaction) : aftght 2013+ + 34₂ 6 H₂ / Agt oxidation had call: Ha QH+ + ge ① Reduction hay cell: Agt t e Ag - Mectripling (2) by a H₂ 2h+ z 20g++ 20 - Ag Redon (net car): H2 + 2Ag+ 2H+ + 2 Ag Al-Agt oxidation haff call: Ales) A3 + + 3 ē Reduction haly cell: Ag+ + ē Ag e muty-а ч" оз уз Alcs) - AP+ + 3 ē 3 Ag + 30 - 300 Net reachion (vedou): Alcos + 3 Agt->$*+349

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