A solution of 6.85g of a carbohydrate in 100.0g of water has a density of 1.024 g/mL and an osmotic pressure of 4.61 atm at 200C. Calculate molar mass of the carbohydrate

Explanation:

Hello,

In this case, since the solute is a carbohydrate the van't Hoff factor is 1, therefore, osmotic pressure, defined via:

Allows us to compute the molarity of the carbohydrate in the solution:

Next, with the computed molarity, we can compute the volume in liters of the solution with the mass of the carbohydrate and water:

After that, we compute the moles of the carbohydrate:

Finally, we compute the molar mass with the obtained moles and the given mass of carbohydrate:

Regards.