In Dumas' method for estimation of nitrogen, 0.3 g of an organic compound gave 50mL of nitrogen collected at 300 K temperature and 715 mm pressure.
Calculate the percentage composition of nitrogen in the compound.(Aqueous tension at 300K=15 mm)

In carius method of estimation of halogen, 0.15 g of an organic compound gave 0.12 g of AgBr. Find out the percentage of bromine in the compound.

In the estimation of nitrogen by Duma 's method 0.59 g to organic compound gave 112 mL nitrogen at NTP .The percentage of nitrogen in the compound is about :

In the estimation of nitrogen by Duma 's method 1.18 g of an organic compound gave 224 mL of N_2 at NTP. The percentage of nitrogen in the compound is about :

0.5 g of an organic compound containing nitrogen on Kjeldahlising required 29 mL of N/5 H_2SO_4 for complete neutralisation of ammonia. The percentage of nitrogen in the compound is :

In Victor Meyor's method, 0.2 g of a substance displaced 63 mL of air at 16^@C and 771 mm pressure. Calculated the molecular weight of the substance . At 16^@C aqueous tension = 13.5 mm.

During estimation of nitrogen present in an organic compound by Kjeldahl's method, the ammonia evolved from 0.5 g of the compound in Kjeldahl's estimation of nitrogen, neutralised 10mL of 1 M H_2SO_4 . Find out the percentage of nitrogen in the compound.

Addition of 0.643 g of a compound to 50. mL of benzene .(density 0.879 g/mL lowers the freezing point from 5.51^0C to 5.03^0C. If K_(f) for benzene is 5.12 K kg mol^1 , calculate the molar mass of the compound.

0.170 g of a volatile liquid displaced 69.1 mL air in Victor Meyor's method. The atmospheric temperature was 15^@ C and pressure was 755 mm. (Aqueous tension at 15^@C = 12.7 mm ). Find the molecular weight of the liquid.

500 ml oxygen at a pressure of 700 mm, 300 ml hydrogen at a pressure of 750 mm and 700 ml of nitrogen at a pressure of 600 mm are enclosed in a vessel of 1 litre capacity at 25^@C . Calculated the total pressure of the gas mixture.