To find the kilograms of our solvent, we have to use the density of water, the fact that we have 800. Then we have to divide by a thousand because we want to go from grams to kilograms. So our density of water times milliliters of solvent divided by 1000. Once again, 1000. We divide by 1000 because we want to go from grams to kilograms. So 1 gram over ML, which is our density times 800 ML over 1000, gives us the MLS cancel grams becomes kilogram because we're dividing by 1000 and that gets us zero 8 solid.