Calculate the activity coefficient of Cu2+ in each of these standard solutions (0.03M, 0.01M, 0.003M, 0.001M, 0.0003M, 0.0001M) of Cu(NO3)2 that also contain 2ml of HClO4. Use the extended Debye-Huckel equation and include all ions, including the perchlorate ion. Assume the perchloric acid is completely dissociated.