0.8 g of an organic compound was analysed 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 H₂SO₄ would have been neutralized by the ammonia evolved during the analysis.
0.8 g of an organic compound was analysed 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 H₂SO₄ would have been neutralized by the ammonia evolved during the analysis.
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1 Answer
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% of N = (1.4 × Normality of acid × volume of acid used) / (mass of organic compound)
42 = (1.4 × (1 × 2) × volume of acid used) / 0.8
Volume of acid used = (42 × 0.8) / (1.4 × 2) ml
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