Problem 8 Calculate the equilibrium constant K for the following reaction: Pb2++2InPb+2In+ with E(Pb/Pb2+)=0.13V and E(In2/In+)=0.14V. Problem 9 In an electrochemical cell involving E(Pb/Pb2+)=0.13V and E(Sn2/Sn2+)=0.14V, the initial concentration of Pb2+ is [Pb2+]=8M and the concentration of Sn2+ is [Sn2+]=0.5M. What is the cell voltage? [answer in Volt] (7 pt)