JEE Mains · Chemistry · STD 11 - 8.3. Organic chemistry purification and characterization
When 1 g of compound (X) is subjected to Kjeldahl's method for estimation of nitrogen, 15 mL, 1M \(H_{2}SO_{4}\) was neutralized by ammonia evolved. The percentage of nitrogen in compound (X) is:
- A 21
- B 0.42
- C 42
- D 0.21
Answer & Solution
Correct Answer
(C) 42
Step-by-step Solution
Detailed explanation
eq. of \(H_{2}SO_{4}\) = eq. of Ammonia \(\Rightarrow \frac{15 \times 1 \times 2}{1000}\) = moles of ammonia \(\times 1\) \(\Rightarrow\) Moles of ammonia = moles of 'N' \(\Rightarrow\) Weight of nitrogen = \(\frac{15 \times 1 \times 2}{1000} \times 14 = 0.42\) % weight of 'N' =…
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