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0.3 g of an organic compound on Kjeldahl...

0.3 g of an organic compound on Kjeldahl's analysis gave enough ammonia to just neutralise 30 mL of 0.IN `H_(2)SO_(4)` . Calculate the percentage of nitrogen in the compound.

Text Solution

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Weight of organic compound (w) = 0.3 g
Strength of sulphuric acid used (N) = 0.1 N
Volume of sulphuric acid used (V) = 30 mL
30 ml of 0.1 N sulphuric acid = 30 ml of 0.1 N ammonia
`:. "Percentage of nitrogen" =((14 xx NV)/(1000 xx w)) xx 100=((14 xx 0.1 xx 30)/(1000 xx 0.3)) xx 100=14%`
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