What do you know by relative lowering of vapour pressure?

What do you mean by relative lowering of vapour pressure? Calculate the relative lowering of Vapour pressure of a solution formed by dissolving 50 g of urea (NH_2 CONH_2) in 850g of water.(Given vapour pressure of pure water at 298K= 23.8mm of Hg.)

According to Raoult 's law the relative lowering of vapour pressure of the solution is equal to

What is the relation between relative lowering of vapour pressure of the solution and mole fraction of solute ?

What do you know by stimulus ?

What do you mean by chelates ?

What do you mean by ramet?

Derive the relationship between relative lowering of vapour pressure and molar mass of non-volatile solute.

6 g urea is dissolved in 90 g water. The relative lowering of vapour pressure is equal to:

18g glucose is dissolved in 90g water. The relative lowering of vapour pressure is equal to