Problem: The molecular weight of ethanol (C2H5OH) is 46.1 and the density of absolute (100%) ethanol = 0.79 g/mLThe 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?

FREE Expert Solution
80% (405 ratings)
FREE Expert Solution

mg ethanol → g ethanol → mol ethanol → mol/L (M) ethanol

80% (405 ratings)
View Complete Written Solution
Problem Details

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?

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Molarity concept. You can view video lessons to learn Molarity. Or if you need more Molarity practice, you can also practice Molarity practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty ofThe molecular weight of ethanol (C2H5OH) is 46.1 and the den...as high difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Dasha took 2 minutes and 38 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Staff's class at UTSA.