A chemist isolated a protein from a crab and wanted to determine its molecular weight. Which of the following method would have given the best result for him?

Explanation

To determine the molecular weight of a protein, a chemist can use various methods such as osmotic pressure method, ultracentrifugation, and gel filtration chromatography. However, the osmotic pressure method is the most straightforward and cost-effective method. In this method, the protein solution is placed in a semipermeable membrane that allows only solvent molecules to pass through.The protein molecules are too large to pass through the membrane, so they remain in the solution.The concentration of the protein solution is then varied, and the osmotic pressure of each solution is measured.