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Question: Answered & Verified by Expert
In Dumas method, $0.3 \mathrm{~g}$ of an organic compound gave $45 \mathrm{~mL}$ of nitrogen at STP. The percentage of nitrogen is
ChemistryGeneral Organic ChemistryAP EAMCETAP EAMCET 2016
Options:
  • A $16.9$
  • B $18.7$
  • C $23.2$
  • D $29.6$
Solution:
1307 Upvotes Verified Answer
The correct answer is: $18.7$
In Dumes method,
$\%$ of nitrogen $=\frac{28 \mathrm{~V} \times 100}{22400 \times W}=\frac{28 \times 45 \times 100}{22400 \times 0.3}=18.75$

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