The final mass and the final concentration are those of Ag, not Ag+. The question wants you to find the amount of Ag+ remaining after electrolysis.
Are you saying that to replace the Ag+ with Ag? Because the loss of a single electron shouldn't really make much of a difference since the mass of an electron is so small.
I am not referring to the single electron and trying to be pedantic. Ag
+ has to replaced by Ag because that's what is correct. When you electrolyse a solution containing Ag
+ ions (the source of Ag
+ being AgNO
3 here), Ag gets deposited, not Ag
+. The metal is what gets deposited.
So, when you are reporting you're final answer :
241.39g as the mass and 4.476 as the concentration of
Ag, not Ag
+Now that makes all the difference doesn't it?