Question

The vapour pressure of pure benzene at 50°c is 268 torr.How many moles of non volatile solute pet mole of benzene ie required to prepare a solution of benzene having a vapour pressure of 167 torr at 50°c

Answer 1

calculate the mass of 1 dm3 of NH3 gas at 30°c 1000mmhg pressure considering tha NH3 behave ideally?

V1 = 302 ml

P1 = 0.52 atm

P2 = ?

V2 = 69 ml Boyle's Law P1V1 = P2V2

P2 = P1V1/V2 P2 =

(0.52 atm)(302 ml)/69 ml

P2 = 2.3 atm...