`A` solution contains `68.4gms` of cane sugar `(C_(12)H_(22)O_(11))` in `1000gms` of water. Calculate the following for this solution (a) Vapour pressure: (b) Osmotic pressure at `20^(@)C`, (c) Freezing point, (d) Boiling point. [density of the solution `=1.024gm cm^(-3)`, vapour pressure of water `=17.54mm`, latent heat of fusion `=80 "cal" cm^(-1)`]`

Answer

(a) `-0.375^(@)` (b) `100.103^(@)C` (c) `17.569mm` (d) `4.6 atm`

Explanation

Apply `Delta T_(f)=K_(f)m and DeltaT_(b)=K_(b)m,` Mass of solution = `1000+68.4=1068.4g`.
`"Volume "=(1068.4)/(1.024)cm^(3)`.