 Okay, the last one we'll attempt to do today is this specific gravity problem. So a hydrometer can be used to measure the specific gravity of human urine. Normal urine has a specific gravity of 1.03. A characteristic of a patient diagnosed with Breitz disease is that his urine has a specific gravity of about 1.06. What is the density of each urine sample of 4 degrees Celsius? So the specific gravity of normal urine, we'll say N-U, normal urine, is 1.03. And the specific gravity of Breitz, 1.5. Specific gravity, or the density of each of these is at 4 degrees Celsius. So remember, what for specific gravity is that you just rearrange this equation to figure out what the density of two samples are. So in order to do this, you're going to have to multiply both sides by the density of water. The density of, so you just add in the ground to 1.03. You got to remember how to rearrange these equations, if not, if you're having trouble with that go back. So cool. That's it for today.