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
Explain Dalton's atomic theory with its postulates. Write down limitation of theory and merits of atomic theory.
John Dalton published a theory describing about the nature and properties of atoms which is called as the Dalton's atomic theory.
The major postulates of Dalton's atomic theory are:
The limitation of theory are as follows:
The merits of this theory are: