Dumas method, Kjeldahl’s method
A sample of 0.50 g of an organic compound was treated according to Kjeldahl’s method. The ammonia evolved was absorbed in 50 mL of 0.5 M H2SO4. The residual acid required 60 mL of 0.5 M solution of NaOH for neutralisation. Find the percentage composition of nitrogen in the compound.
Differentiate between the principle of estimation of nitrogen in an organic compound by Dumas method
Discuss the principle of estimation of halogens, sulphur and phosphorus present in an organic compound.