Answer to Question #296649 in General Chemistry for Yenn

Question

What is the vapor pressure of the pure solvent if the vapor pressure of a solution of 10g sucrose (C12H22O11) in 100g of ethanol (C2H5OH) is 55 mmHg?

A solution prepared by adding 10g of an unknown non-volatile, non-electrolyte solute to 100 g of water. The Boiling point of the solution is elevated by 0.433 0C above the normal boiling point of the solvent. What is the molar mass of the unknown substance?

You add 1 kg of ethylene glycol (C2H6O2) antifreeze to 4450g of H2O in your car’s radiator. What would be the freezing point of the solution?

How many grams of Lactic acid (C6H10O5) should be dissolved in 647g of cyclohexane (C6H12) to raise the boiling point to 84.910C? The normal boiling point of cyclohexane is 810C and its molal boiling point is 2.75 0C/m.

The osmotic pressure of 210mL of an aqueous solution containing 0.150g of the enzyme lysozyme is found to be 0.0013atm at 24.850 Calculate the molar mass of lysozyme.

Answer 1

Vapor pressure =3atm