18-13. Calculate the potential of a copper cloctrode immersed in (a) 0.0380 M Cu(NO_(3))_(2) (b) 0.0650 M in NaCl and saturated with CuCl.

To calculate the potential of a copper electrode immersed in different solutions, we can use the Nernst equation. The Nernst equation relates the electrode potential to the concentration of the ions in solution.The general form of the Nernst equation is: where:- is the electrode potential,- is the standard electrode potential,- is the number of moles of electrons transferred in the half-reaction,- is the reaction quotient.For a copper electrode, the half-reaction is: So, .(a) For a 0.0380 M solution:The reaction quotient is given by: Substituting the values into the Nernst equation: Using the standard electrode potential for copper, : (b) For a 0.0650 M NaCl solution saturated with CuCl:The reaction quotient is given by: Substituting the values into the Nernst equation: Using the standard electrode potential for copper, : Therefore, the potential of the copper electrode in:(a) 0.0380 M is approximately 0.382 V.(b) 0.0650 M NaCl saturated with CuCl is approximately 0.3937 V.