[" Lettrolyte solute ( molar mass "=50g" mol "1" ) necded to be dissolve "],[" pressive by "75%" ,is "],[[" 13) "75" a "," (1) "15" .Is (MAIN-2018-0)Ull "]]

The mass of non-volatile, non-electrolyte solute ("molar mass" = 50 g "mol"^(-1)) needed to be dissolved in 114 g octane to reduce its vapour pressure to 75%, is :

The molarity of urea (molar mass 60 g mol^(-1) ) solution by dissolving 15 g of urea in 500 cm^(3) of water is

The Molarity of urea ( molar mass 60 g mol ^(-1) ) solution prepared by dissolving 15 g urea in 500 cm^(3) of water is ______.

The mass of a non-volatile solute (molar mass 80 g mol^(-1) ) which should be dissolved in 92g of toluene to reduce its vapour pressure to 90%

Calculate the mass of compound ( molar mass = 256 g mol^(-1) ) to be dissolved in 75 g of benzene to lower its freezing point by 0.48 K (Kf= 5.12 K kg mol^(-1)) .