Question

The nonvolatile, nonelectrolyte cholesterol, C27H46O (386.60 g/mol), is soluble in benzene C6H6. Calculate the osmotic pressure generated when 14.6 grams of cholesterol are dissolved in 263 ml of a benzene solution at 298 K. The molarity of the solution is M. The osmotic pressure of the solution is atmospheres.

Answer 1

Explanation:the formula for osmotic pressure is given in the first line, all the terms are explained before solution, from the question,

Molar mass=Mm=386.6

Mass= m= 14.6

Volume= 263/1000 = 0.263dm^3

Temperature=T= 298K.

Gas constant .R= 0.082

Then substitute into the equation πV= nRT

Making π subject of formula

π= nRT/V

Then further substitution