Osmosis and Reverse Osmosis: ConcepTest and Example Problem

Try to answer this ConcepTest and solve the example problem before using this module. Studies show that trying to answer the questions before studying material improves learning and retention. We suggest that you write down the reasons for your answers. By the end of this module, you should be able to answer these on your own. Answers will be given at the end of this module.

A sample problem covering osmotic pressure.
Example Problem 1

An aqueous solution containing 2.5 g of a protein dissolved in 600 cm3 solution at 20°C was placed in a container that has a water-permeable membrane. Water permeated through the membrane until the level of the solution was 0.90 cm above the pure water. What is the molecular weight of the protein?