A sample of acetone (CH3COCH3) vapours undergoes dimerization (2A -> A2). Find the degree of dimerization if average molecular mass of the gaseous mixture was found to be 72.5 g/mol(A) 30%(B) 40%(C) 50%(D) 60%

A sample of acetone (CH3COCH3) vapours undergoes dimerization (2A -> A

1.	A sample of acetone (CH3COCH3) vapours undergoes dimerization (2A -> A2). Find the degree of dimerization if average molecular mass of the gaseous mixture was found to be 72.5 g/mol(A) 30%(B) 40%(C) 50%(D) 60%
Answer» The CORRECT answer is option B.Explanation:For association: = degree of association i = van't HOFF factori = = CALCULATED molecule mass = Observed molecular massn = 2