Problem: 30 grams of liquid ethanol, CH3CH2OH, are mixed with 70 g water. The density of pure ethanol is 0.789 g/mL. The density of water is 1 g/mL. What is the molality of the ethanol in this solution?

FREE Expert Solution
98% (30 ratings)
Problem Details

30 grams of liquid ethanol, CH3CH2OH, are mixed with 70 g water. The density of pure ethanol is 0.789 g/mL. The density of water is 1 g/mL. What is the molality of the ethanol in this solution?

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 Molality concept. You can view video lessons to learn Molality. Or if you need more Molality practice, you can also practice Molality practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty of30 grams of liquid ethanol, CH3CH2OH, are mixed with 70 g wa...as medium difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Sabrina took 2 minutes and 32 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 CCNY.