And the solution on this in this anode is the outside solution and the cathode is the inside solution. And that's because initially in a concentration cell, this guy is more dilute. That means it's the outside, because remember, we have less potassium on the outside than on the inside. So this guy must be the inside. So now let's see what happens. Well, electrons leave this potassium ion or leave the potassium solid ion this electrode and travel via the conductor, via the cell membrane onto this electrode.