Kjeldahl’s method was used for the estimation of nitrogen in an organic compound. The ammonia evolved from 0.55g of the compound neutralized 12.5 mL of 1M H2SO4 solution. The percentage of nitrogen in the compound is_________ (Nearest Integer)
Kjeldahl’s method was used for the estimation of nitrogen in an organic compound. The ammonia evolved from 0.55g of the compound neutralized 12.5 mL of 1M H2SO4 solution. The percentage of nitrogen in the compound is_________ (Nearest Integer)
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1 Answer
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Millie q. of H2SO4 used by NH3 = 12.5 × 1 × 2 = 25
So millimoles of N = 25
Moles of N = 25 × 10-3
Wt of N = 14 × 25 × 10-3
% of N =
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