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Calculate the molar mass of a substance 1.3 g of which when dissolved in 169g of water gave the solution which will boil at `100.025^@C` at 1atm.
`(k_b=0.52Km^-1)`

Calculate the molality of a solution containing 3g glucose dissolved in 30g of water. (molar mass of glucose = 180 )

18 g of glucose is dissolved in 1 kg of water. At what temperature will the solution boil ? ( K_b for water is 0.52 K kg "mol"^(-1) )

What would be the molar mass of a compound if 6.21g of it dissolved in 24.0 g of chloroform form a solution that has a higher boiling point of 68.04^@C and the boiling point of pure chloroform is 61.7^C and the boiling point elevation constant K_b for chloroform is 3.63^@C/m .

Calculate the molal elevation constant of water (K_(b) = ?) . Given that 0 . 1 molar aquous solution of a substance boiled at 100 .052^(@) C

Calculate the number of atms in 39.4 g gold. Molar mass of gold Is 197 g mole^-1.

Calculate the mass of a non-volatile solute ( molar mass 40g mol^-1 ) which should be dissolved in 114g octane to reduce its vapour pressure to 80%.

2.82g of glucose (Molar mass: 180g mol^-1 ) are dissolved in 30g of water . Calculate mole fraction of glucose and water.