How sulphur is estimated by Carius method and give calculation.

How copper is refined by electrolytic method?

In the estimation of sulphur by Carius method, 0.480g of an organic compound gives 0.699g of barium sulphate. The percentage of sulphur in this compound is [Atomic masses : Ba=137 , S=32 , O=16 ]

0.316 g of an organic compound gives 0.466 g of barium sulphate by carius method. Calculate the percentage of sulphur?

In an estimation of sulphur by Carius method, 0.160g of the substance gave 0.466g of barium sulphate. The percentage of sulphur in the compound is [At mass of Ba=137 , S=32 , O=16 ] :

For the estimation of nitrogen 1.4g of an organic compound was digested by Kjeldahl method and the evaloed ammonia was absorbed in 60mL of (M)/(10) sulphuric acid. The unreacted acid required 20mL of (M)/(10) sodium hydroxide for complete neutralisation . The percentage of nitrogen in the compound is

Write the principle involved in the estimation of carbon and hydrogen.Give diagram and calculation.

Name the element estimated by Kjeldhal's method.