Vapour pressure of solution from osmotic pressure

sparkle123

One arm of a osmometer is filled with a 0.01 M solution, another arm is filled with pure solvent. The osmotic pressure is 0.003 atm. The vapour pressure of pure solvent is 0.005 atm. Calculate the vapor pressure of the solution.

Is the osmotic pressure just the difference of vapour pressure in the two arms? if so, how would you calculate the vapour pressure in the two arms?