So at a PH of seven, what will be the charge on that molecule? Right. Okay, so at a PH of seven, this one will have a positive charge because it only loses that H and becomes neutral at or above this PKA value. So what about this one? Well, this one will have a neutral charge because it will only lose that H and gain a negative charge. At or above this PH value, this one has a lower PKA value, so it will be negative.