For the exercise in this topic, base your answers on the potentials listed in Table 6M 1 or Appendix 2B, with the exception of the reduction and oxidation of water at pH 7 Three electrolytic cells containing solutions of CuNO 3 , Sn(NO 3 ) 2 , and Fe(NO 3 ) 3 , respectively, are connected in series A current of 3 5 A is passed through the cells until 6 10 g of copper has been deposited in the first cell (a) What masses of tin and iron are deposited (b) For how long did the current flow 2 HO(1) 2 e H(g) 2 OH (aq), E O(g) 4 H (aq) 4 e 2 HO (1), E 0 42 V at pH 7 0 82 V at pH 7

Question: For the exercise in this topic, base your answers on the potentials listed in Table 6M.1 or Appendix 2B, with the exception of the reduction

For the exercise in this topic, base your answers on the potentials listed in Table 6M.1 or Appendix 2B, with the exception of the reduction and oxidation of water at pH = 7: 2 HO (1) + 2 e H(g) + 2OH(aq), O(g) + 4 H+ (aq) + 4 e E = -0.42 V at pH = 7 2 HO (1), E = +0.82 V at pH = 7 Three electrolytic cells containing solutions of CuNO₃, Sn(NO₃)₂, and Fe(NO₃)₃, respectively, are connected in series. A current of 3.5 A is passed through the cells until 6.10 g of copper has been deposited in the first cell.

(a) What masses of tin and iron are deposited?

(b) For how long did the current flow? TABLE 6M.1 Standard Potentials at 25 C* Species Oxidized form is strongly oxidizing F/F Aut/Au Ce*+/Ce+ MnO,

2 HO(1) + 2 e H(g) + 2 OH (aq), E = O(g) + 4 H (aq) + 4 e 2 HO (1), E = -0.42 V at pH = 7 +0.82 V at pH = 7

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