So the specific activity is the ratio of the enzyme activity to the protein, the total protein in our sample. So 200,000 divided by 20,000, and that gives us a value of ten. So the four zeros cancel, we get 20 divided by two, and that gives us a value of ten. So now that we have all these five values, now we can extract another portion of this same sample. And now we expose it to the process of salting out. And in salting out, we basically separate our protein mixture based on their ability to dissolve in a salt concentration.