What mass of urea be dissolved in `171 g` of water so as to decrease the vapour pressure of water by `5%`?

The weight of urea to be dissolved in 100 g. of water to decrease the vapour pressure of water by 5% is

What is the mass of a non-volatile solute (molar mass 60) that needs to be dissolved in 100 g of water in order to decrease the vapour pressure of water by 25%. What will be the molality of the solution?

What mass of non-volatile solute, sucrose, need to be dissolved in 100g of water to decrease the vapour pressure of water by 30%?

What weight of the non -volatile solute, urea needs to be dissolved in 100g of water, in order to decrease the vapour pressure of water by 25%? What will be the molality of the solution?

What mass of non-volatile solute (urea) needs to be dissolved in 100 g of water in order to decrease the vapour pressure of water by 30% . What will be the molality of solution?

What mass of non-volatile solute (urea) needs to be dissolved in 100 g of water in order to decrease the vapour pressure of water by 30% . What will be the molality of solution?

What mass of non-volatile solute (urea) needs to be dissolved in 100 g of water in order to decrease the vapour pressure of water by 30% . What will be the molality of solution?

What weight of the non-volatile solute urea' (NH_(2)-CO-NH_(2)) needs to be dissolved in 100 g of water in order to decrease the vapour pressure of water by 25% ? What will be the molality of the solution?