An organic compound contains 20.0% C, 6.66% H, 47.33% N and the rest was oxygen. Its molar mass is 60 g . The molecular formula of the compound is
Ratio of atoms
= 1.67 : 6.66 : 3.38 : 1.63
= 1 : 4 : 2 : 1
Molar empirical formula mass = 60 g
0.156 g of an organic compound on heating with fuming HNO3 and AgNO3 gives 0.235 g of AgI. Calculate the percentage of the iodine in the compound.
276 g of silver carbonate on being strongly heated yields a residue weighing
0.1170 g of an organic compound on heating with conc. HNO3 and silver nitrate in Carius furnace gave 0.42 g of AgCl. Find the percentage of chlorine in the compound.
On heating 0.32 g of an organic compound with concentrated nitric acid and barium chloride, 0.932 g barium sulphate was obtained. Calculate the percentage of sulphur in the given compound.
6 g of an organic compound containing oxygen is heated with graphite and carbon monoxide formed is quantitatively converted to 8.8 g CO2 on reaction with I2O5. Calculate percentage of oxygen in the compound.
For the reaction,
5 moles of X and 9 moles of Y will produce
The function of boiling the sodium extract with conc. HNO3 before testing for halogen is:
If 0.5 mole of is mixed with 0.2 mole of the maximum number of moles of that can be formed is
Sodium nitroprusside when added to an alkaline solution of sulphide ions produces a colouration :
In the following reaction,
2 mol MnO2 reacts with 4 mol of HCl to form 11.2 L at STP. Thus, per cent yield of is