4. Galvanic cell uses a spontaneous chemical reaction to generate electricity. For each of the cell's notation below, ca

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4 Galvanic Cell Uses A Spontaneous Chemical Reaction To Generate Electricity For Each Of The Cell S Notation Below Ca 1 (101.86 KiB) Viewed 40 times

4. Galvanic cell uses a spontaneous chemical reaction to generate electricity. For each of the cell's notation below, calculate the Eº cell. (a) Pt | PbO2(s) | Pb²+ (aq), H*(aq) || S2O8²-(aq), SO4²-(aq) | Pt (4 marks) (b) Pt | 12(s) | |-(aq) || CH(aq) | Cl2(g) | Pt (4 marks) 1190 32308 350 3.38 02188 5. In the laboratory, you are required to investigate a nickel-cadmium cells. 352 (a) Identify the element which changes the oxidation state. 22 (1 mark) 3548 12:0)(MN) (b) State the oxidation state change. 5280'ssef 443 9008) eos/238(+-558 (+3)(be) -The (2 marks) (c) Write the cell notation of the cell. 542954(+120/8/g)(oba) ROSA 95911-558838)(b) (3 marks) Je pel(more) (d) The nickel-cadmium cell is rechargeable. Write an equation for the overall reaction when the battery is recharged. 20 091) (2 marks) (e) Explain why we must be extra careful in the disposal process of nickel- cadmium cells. S480 BOS8'101+ (1 mark)