= 1- A solution is prepared from 3 gm of NaOH and 75 gm of water....

  

Transcribed Image Text:

= 1- A solution is prepared from 3 gm of NaOH and 75 gm of water. Kf -1.86 C/m, K = 0.521 C/m and M.Wt. of NaOH = 40gm). What will be the temperature at which the solution boils and freezes? 2- A solution containing 2 gm of CaCl2 in 98 gm of water freezes at -0.88C, What is the Boiling point of this solution? (Kf= -1.86 C, M.Wt. CaCl2= 111 gm) = 0.512 3- A sugar solution is made by mixing 180 gm of sucrose with 700 gm of water. Calculate the boiling point and freezing point of solution, if the vapour pressure of pure water is 0.122 atm at 50C. Calculate the vapour pressure of the solution. K Water C/m, Kf Water = -1.86 C/m, M.Wt. of sucrose = 342 g 2 gm. 4- A solution formed from 2 moles of substance A and 3 moles of substance B has a vapour pressure 0.322 atm at 35 C. the vapour pressure of pure A and pure B are 0.255 atm. And 0.155 atm respectively. What type of deviation do this solution from that predicted from raoult's law? 5- On dissolving 1.19 gm. of NaNO3 in 100gm. water at 27C, the boiling point of solution was 100.13 C. Calculate the osmotic pressure of this solution. K of water = 0.53 C/m. O=16, N=14 and Na= 23. = 1- A solution is prepared from 3 gm of NaOH and 75 gm of water. Kf -1.86 C/m, K = 0.521 C/m and M.Wt. of NaOH = 40gm). What will be the temperature at which the solution boils and freezes? 2- A solution containing 2 gm of CaCl2 in 98 gm of water freezes at -0.88C, What is the Boiling point of this solution? (Kf= -1.86 C, M.Wt. CaCl2= 111 gm) = 0.512 3- A sugar solution is made by mixing 180 gm of sucrose with 700 gm of water. Calculate the boiling point and freezing point of solution, if the vapour pressure of pure water is 0.122 atm at 50C. Calculate the vapour pressure of the solution. K Water C/m, Kf Water = -1.86 C/m, M.Wt. of sucrose = 342 g 2 gm. 4- A solution formed from 2 moles of substance A and 3 moles of substance B has a vapour pressure 0.322 atm at 35 C. the vapour pressure of pure A and pure B are 0.255 atm. And 0.155 atm respectively. What type of deviation do this solution from that predicted from raoult's law? 5- On dissolving 1.19 gm. of NaNO3 in 100gm. water at 27C, the boiling point of solution was 100.13 C. Calculate the osmotic pressure of this solution. K of water = 0.53 C/m. O=16, N=14 and Na= 23.

Answer rating: 100% (QA)

1 Let the molality of the solution be m Mol wt of NaOH 40 gmol Moles of N... View the full answer