16:I[8216,["972","static/chunks/972-b28da0de92681928.js","47","static/chunks/47-a7f06e9eda1ac756.js","115","static/chunks/app/%5Bexam%5D/questions/%5Byear%5D/%5Bsubject%5D/%5Bchapter%5D/%5BquestionId%5D/page-7b6f0a12b9cc0206.js"],"BackButton"] 17:I[1553,["972","static/chunks/972-b28da0de92681928.js","47","static/chunks/47-a7f06e9eda1ac756.js","115","static/chunks/app/%5Bexam%5D/questions/%5Byear%5D/%5Bsubject%5D/%5Bchapter%5D/%5BquestionId%5D/page-7b6f0a12b9cc0206.js"],"QuestionViewer"] 15:T4b2,{"@context":"https://schema.org","@type":"Quiz","name":"Jee Main 2021 Practical Organic Chemistry PYQ with Solution","url":"https://pyq-test-series-platform-alsjdcxu2-sameers-projects-41c5a71e.vercel.app/jee-main/questions/2021/chemistry/practical-organic-chemistry/1krxcl7xz","educationalLevel":"Entrance exam preparation","about":"Jee Main / Chemistry / Practical Organic Chemistry","hasPart":{"@type":"Question","name":"Jee Main 2021 Practical Organic Chemistry PYQ with Solution","text":"0.8 g of an organic compound was analyzed by Kjeldahl's method for the estimation of nitrogen. If the percentage of nitrogen in the compound was found to be 42%, then ______________ mL of 1 M H 2 SO 4 would have been neutralized by the ammonia evolved during the analysis.","eduQuestionType":"integer","acceptedAnswer":{"@type":"Answer","text":"12"},"comment":{"@type":"Comment","text":"Organic compound : 0.8 gm wt. of N = \\left( {{{42} \\over {100}} \\times 0.8} \\right) gm mole of N = {{{42 \\times 0.8} \\over {100 \\times 14}} = {{2.4} \\over {100}}} mol moles of NH 3 = {{{2.4} \\over {100}}} {{{1.2} \\over {100}}} = 1 \\times V(l) { \\Rightarrow {V_{{H_2}S{O_4}}} = {{1.2} \\over {100}}l = 12} ml"}}}18:T40b,Organic compound : 0.8 gm

wt. of N = $$\left( {{{42} \over {100}} \times 0.8} \right)$$ gm

mole of N = $${{{42 \times 0.8} \over {100 \times 14}} = {{2.4} \over {100}}}$$ mol

moles of NH₃ = $${{{2.4} \over {100}}}$$

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