Verified Solution • 2025–26 Session moderate

QJEEM22Ch18c9: JEE Main 2022 Chemistry - Class 11 JEEM22Ch18c9 Solution: A 0.166 g sample of an organic compound was digested with conc. …

A 0.166 g sample of an organic compound was digested with conc. H2SO4 and then distilled with NaOH. The ammonia gas evolved was passed through 50.0 mL of 0.5 N H2SO4. The used acid required 30.0 mL of 0.25 N NaOH for complete neutralization. The mass percentage of nitrogen in the organic compound is ____________.

Step-by-Step Verified Solution

Millimoles of used acid =30×0.252=\frac{30 \times 0.25}{2}

Millimoles of NH3=30×0.25=7.5\mathrm{NH}_{3}=30 \times 0.25=7.5

Mass %\% of nitrogen =7.50.166×10−3×14×100≃63%=\frac{7.5}{0.166} \times 10^{-3} \times 14 \times 100 \simeq 63 \%

Related Learning Resources & Exam Preparation

JEE Main PYQ Question Bank
Browse year-wise authentic previous years' questions with solutions
Authentic CBT Mock Tests
Simulate official exam environment with live timer and percentile scoring