In the estimation of nitrogen by Kjeldahl's method 2.8 gm of an organic compound required 20 millimole of `H_2SO_4` for the complete neutralisation of `NH_3` gas evolved. The percentage of nitrogen in the sample is:

In the estimation of nitrogen by Kjeldahl's method, 2.8 g of an organic compound required 20 millimoles of H_(2)SO_(4) for the complete neutralisation of NH_(3) gas evolved. The percentage of nitrogen in the sample is

0.5 g of an organic compound cantaining N on Kjeldahl analysis required 29 ml of N/5 H_(2)SO_(4) for complete neutralization of NH3 . The percentage of N in the compound is

0.23 g of a nitrogen containing organic compound was Kjeldahlised and the ammonia obtained requires 23 ml of M/10 H_2SO_4 for neutralization. The percentage of nitrogen in the organic compound is

In Duma's method for quantitative estimation of nitrogen, 0.5 g of an organic compound gave 100 ml of nitrogen collected at 27°C temperature and 680 mm of Hg pressure. What is the percentage composition of nitrogen in the sample? [Given aqueous tension at 27°C = 20mm Hg]

During estimation of nitrogen present in an organic compound using Kjeldahl's method, the NH_3 evolved from 0.25 g of the compound was neutralised by 10 ml of 1.25N H_2SO_4 What is the percentage of nitrogen in the organic compound?

In the Kjeldahl's method for estimation of nitrogen present in a soil sample, ammonia evolved from 0.75 g of sample neutralised 10 mL of 1 M H2SO4. The percentage of nitrogen in the soil is

0.25g of an organic compound on Kjeldahl's analysis gave enough ammonia to just neutralise 10cm^(3) of 0.5 M H_(2)SO_(4) . The percentage of nitrogen in the compound is :

0.5g of an organic compound on Kjeldahl's analysis gave enough ammonia to just neutralize 10 cm^(3) of 1 M H_(2)SO_(4) . The percentage of nitrogen in the compound is

percentage of nitrogen by mass in N_(2)H_(4) ?

In Duma's method for estimation of nitrogen. 0.25 g of an organic compound gave 40mL of nitrogen collected at 300K temperature of 725 mm pressure. If the aqueous tension at 300K is 25 mm , the percentage of nitrogen in the compound is