🤓 Based on our data, we think this question is relevant for Professor Staff's class at UTSA.
The molecular weight of ethanol (C2H5OH) is 46.1 and the density of absolute (100%) ethanol = 0.79 g/mL
The legal limit for a driver’s blood alcohol is 50 mg of ethanol per 100 mL of blood (referred to as a blood alcohol content (BAC) of 0.05%). What is the molarity of ethanol (in blood) in a person at this legal limit?
mg ethanol → g ethanol → mol ethanol → mol/L (M) ethanol