A compound contains 28% N and 72% of a m...

A compound contains 28% N and 72% of a metal by weight . Three atoms of metal combine with two atoms of N . Find the atomic weight of metal.

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The correct Answer is:

`MW=28+72=100`
`"Wt. of two .N. atoms = 28 gm"`
`"Wt. of 3 metal atoms = 72 gm"`
`"Wt. of 1 metal atoms = ?"`
`=(72)/(3)=24`

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