Question

Kjeldahl’s method was used for the estimation of nitrogen in an organic compound. The ammonia evolved from 0.55 g of the compound neutralised 12.5 mL of 1 M H2SO4 solution. The percentage of nitrogen in the compound is _____. (Nearest integer)

Answer 1

The correct answer is: 64

$=\frac{1.4×2×12.5}{0.55}=63.63\%≃64$