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In a given compound the elements H, C, ...

In a given compound the elements `H, C, O`, and `N` are in the mass ratio `1 : 3 : 4 : 7` The empirical formula of the compound is

A

`H_(2) CON_(4)`

B

`H_(3) C_(2) O_(3) N`

C

`H_(4) CON_(2)`

D

`H_(4) C_(*3) O_(3) N_(3)`

Text Solution

Verified by Experts

The correct Answer is:
C
`n_(H) = (1g)/(1g mol^(-1)) = 1, n_(C) = (3g)/(12g mol^(-1)) = (3)/(12) = (1)/(4)`
`n_(O) = (4g)/(16g mol^(-1)) = (4)/(16) = (1)/(4), n_(N) = (7g)/(14g mol^(-1)) = (1)/(2)`
`:. N_(H) : n_(C) : n_(O) : n_(N) = 1 : (1)/(4) : (1)/(4) : (1)/(2) = 4 : 1 : 1 : 2`
`:. EF` is `H_(4) CON_(2)`.
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