1. The problem statement, all variables and given/known data The mols of ethanol is 1.72x10^-4. I am trying to find its volume. However, I am confused on what the molarity of this solution is. (Molarity here is in mol/L) (the 10mL sample contained 1.72x10^-4 mols of ethanol, but it was diluted in 90 mL water) The lab said: "Dilute the 10.0 mL ethanol sample as such: (10.0 mL ethanol in 90.0 mL of distilled water, for a total of 100.0 mL)." 3. The attempt at a solution The mols of ethanol is 1.72x10^-4. Do I divide this figure by .01 liters? Or do I do it by .1? I think it's one or the other but either way I need this calculation perfect or the rest of the lab is moot!