Some Basic Principles Of Organic Chemistry Question 136
Question: $ 116mg $ of a compound on vaporization in a Victor Meyer’s apparatus displaces $ 44.8,ml $ of air measured at S.T.P. The molecular weight of the compounds is [Kerala PMT 2004]
Options:
A) 116
B) 232
C) 58
D) 44.8
E) 46.4
Show Answer
Answer:
Correct Answer: C
Solution:
$ 116,mg $ compounds means $ 116\times {{10}^{-3}}gm $ compound since $ 1mg $ contain $ {{10}^{-3}}gm $ Mol.
wt. of compound $ =\frac{\text{mass of the substance}}{\text{volume of the vapour at S}\text{.T}\text{.P}\text{.}}\times 22400 $
$ =\frac{116\times {{10}^{-3}}}{44.8}\times 22400 $ =57.99% or 58.0%
