The weight of solute (MW-60) required to...

The weight of solute (MW-60) required to be added in 180 g of water to reduce the vapour pressure to 4/5th of pure water is :

130 g

150 g

300 g

75 g

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What weight of solute (mol. Wt. 60) is required to dissolve in 180 g of water to reduce the vapour pressure to 4//5^(th) of pure water ?

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

What should be the mass of glucose to be added to 900 g water to decrease vapour pressure by 1% ?

At room temperature, a dilute solution of urea is prepared by dissolving 0.60 g of urea in 360 g of water. If the vapour pressure of pure water at this temperature is 35 mm Hg, lowering of vapour pressure will be: (molar mass of urea =60 g "mol"^(-1) )

What weight of the non-volatile urea ( NH_2- CO - NH_2 ) needs to be dissolved in 100g of water in order to decrease the vapour pressure of water by 25%? What will be molality of the solution?

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