But Ka is basically the product of the concentrations of the product. So the concentration of this guy times the concentration of this guy divided by the concentration of the reaction of this guy. And we said that if our Ka value is high, if it's bigger than one, that means our acid is a strong acid. And if our Ka is low, if it's less than one, we're dealing with a weak acid. Now, by strong acid, I simply need an acid that's willing to dissociate, that's willing to go from this form to this form. So therefore, if our Ka is high, that means the concentration of these guys is high and the concentration of this guy is low.