Acetone boils at `56.38^(@)`C and a solution of 1.41 g of an organic compound in 20 g of acetone boils at `56.88^(@)`C. Calculate the molar mass of the organic compound (Given `k_(b)` for acetone = 1.67 k kg/ mol).

(a) Acetone boils at 56.38^@C and a solution of 1.41g of an organic compound in 20 g of acetone boils at 56.88^@C . Calculate the molar mass of the organic compound (Given K_(b) for acetone =1.67 K kg//mol ). (b) What is reverse Osmosis?Mention one important application of it.

Chloroform boils at 61.7^(@)C and the solution of 6.21g of an organic compound is dissolved in 24g of chloroform boils at 68.04^(@)C . What would be the molar mass of compound if K_(b) value is 3.63 K kg mol^(-1) .

A solute containing 0.564g of solute in 36.8g of acetone boils at 56.46^(@)C . Calculate the molar mass of solute if the boiling point of acetone is 56.30^(@)C . [ K_(b) for acetone 1.92K kg. mol^(-1) ]

0.12 g of an organic compound gave on combustion 0.18 g of water and 0.11 g of CO_(2) . Calculate the percentage of C and H in the organic compound.

The solution containing 10 g of an organic compound per litre showed an osmotic pressure of 1.18 atm at 0^(@)C . Calculate the molecular mass of the compound "(R=0.0821 litre atm per degree per mol)"

A solution containg 12 g of a non-electrolyte substance in 52 g of water gave boiling point elevation of 0.40 K . Calculate the molar mass of the substance. (K_(b) for water = 0.52 K kg mol^(-1))

A solution containing 12.5 g of non-electrolyte solution in 175g of water gave a boiling point elevation of 0.7 k. calculate the molar mass of the solute if K_(b) for water is 0.52 K kg mol^(-1) .

By dissolving 13.6 g of a substance in 20 g of water, the freezing point decreased by 3.7^(@)C . Calculate the molecular mass of the substance. (Molal depression constant for water = 1.863K kg mol^(-1))

The freezing point of a solution containing 4.8 g of a compound in 60 g of benzene is 4.48. What is the molar mass of the compound ? ( K_(f)=5.1 Km^(-1) , freezing point of benzene =5.5^(@)C )

The boiling point of benzene is 353.23 K . When 1.80 g of a non-volatile solute was dissolved in 90 g benzene, the boiling point is raised to 354.11 K . Calculate the molar mass of the solute. ( K_(b) for benzene is 2.53 K kg mol^(-1) )