Urea forms an ideal solution in water. determine the vapour pressure of an aqueous solution contain 10% by mass of urea at 40°c

Urea forms an ideal solution in water. determine the vapour pressure o

1.	Urea forms an ideal solution in water. determine the vapour pressure of an aqueous solution contain 10% by mass of urea at 40°c
Answer» 23.14mmExplanation:Mass of urea = 5 gMass of water = (100-5) = 95 GNO. of moles of urea = 605 =0.083No. of moles of water = 1895 =5.278Total number of moles =5.278+0.083 =5.361Mole fraction of solvent = 5.3615.278 P s = MOLE fraction of solvent ×P 0 = 5.3615.278 ×23.5=23.14mm