A divalent metal oxide contains 60% of metal. What is atomic weight of metal?
wt of metal= 60 g
wt of oxygen= (100-60) g= 40 g
Eq. wt. of metal = wt. of metal/ wt of oxygen* 8
= 12
As metal is divalent, At. wt= Eq. wt* valency= 12*2 = 24
An organic substance containing carbon, hydrogen and oxygen gave the following percentage composition: C=40.687%, H=5.085% and O=54.228%. The vapour density of the compound is 59. Calculate the molecular formula of the compound.