Derive a formula determining molecular mass from depression in freezing point.

Derive a formula for determining molecular mass from osmotic pressure.

What is depression in freezing point ? How will you find the molecular weight of a substance with its help? Why do we get abnormal molecular mass from depression in freezing points ?

Complete the following statements by selecting the correct alternative from the choices given:- Ethanoic acid dimerises in solution. Its molecular mass determined from its depression of freezing point of the solution will be:

Which of the following will have maximum depression in freezing point ?

Each question contains STATEMENT-I(Assertion) and STATEMENT-2(Reason).the statement carefully and mark the correct answer according to the instruction given below: STATEMENT - 1 : The molecular mass of acetic acid determined by depression in freezing point method in benzene and water was found to be differrent. STATEMENT - 2 : Water is polar and benzene is non-polar.

Draw the vapour pressure curve explaining depression in freezing point.

Assertion (A) When NaCl is added to water a depression in freezing point is observed. Reason (R ) The lowering of vapour pressure of a solution causes depression in the freezing point.

For the same solution the elevation in boiling point has higher values than depression in freezing point.

What will be the molecular weight of NaCl determined experimentally following elevation in the boiling point or depression in freezing point method?

What will be the molecular weight of NaCl determined experimentally following elevation in the boiling point or depression in freezing point method?