question_answer

  If E° copper electrode is + 0.34 V, how will you calculate its e.m.f. value when the solution in contact with it is 0.1 M in copper ions?                                                                                                                                                                 How does e.m.f. for copper electrode change when concentration of ions in the solution is decreased.                                                                        

Answer:

                                                                                                              1 And             ,                                                                                                                                                                  1 If the concentration of ions is decreased, the e.m.f. for copper electrode decreases.