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During estimation of nitrogen present in...

During estimation of nitrogen present in an organic compound by Kjeldahl’s method, the ammonia evolved from 0.5 g of the compound in Kjeldahl’s estimation of nitrogen, neutralized 10 mL of 1 M `H_(2)SO_(4)`. Find out the percentage of nitrogen in the compound.

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1 M of 10 ml `H_(2)SO_(4)` = 1M of 20 ml of `NH_(3)`
1000 ml of 1 M ammonia contains = 14 g N
`:.` 20 ml of 1 M ammonia contains =`(14xx20)/1000` gN
`:.` of N = `(14xx20)/(1000x0.5) xx100=56.0%`
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AAKASH INSTITUTE ENGLISH-ORGANIC CHEMISTRY : SOME BASIC PRINCIPLES AND TECHNIQUES -Assignment(Section-D)(Assertion - Reason Type Questions)
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  8. A : Before testing of halogens, sodium extract must be boiled with con...

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  13. A : C(2)H(5) -""^(+)CH —C(2)H(5) . is more stable than CH(3)-""^(+)CH-...

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  14. A : CH(3)— BH — CH(2) can not show resonance. R : Boron and carboc...

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  15. A: C(2)BrClFI can form 6 different geometrical isomers. R : Each o...

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  16. A: Phenol is more reactive than toluene towards S(E) reaction. R: ...

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