Which of the following cell combinations would be the best to use when setting up a cell with a potential of exactly 0.5 v by adjusting the half-cell ion concentrations? as part of your preparation for performing this experiment, calculate the volume of 1 m metal ion solution that needs to be diluted (and what the final volume of the diluted solution should be) in order to prepare the solution required for creating a cell with a potential of exactly 0.5 v. record this information in your lab notebook and check the accuracy with your ta before preparing the solution. a) cu/cu2+ and pb/pb2+ b) zn/zn2+ and cu/cu2+ c) zn/zn2+ and pb/pb2+ d) none of these