Divided by 20 our constant Celsius cancels moles goes on top and we get 0.165
moles per kilogram. And this is our Molarity. Now, in the second step, let's look at the formula for molality. Molarity equals moles of compound divided by a kilogram of solids. Now we're given kilogram of solids, so we know that we also know molality. Now let's change our moles of compound formula to something else.