15 g mixture of He and Ar occupied 30L at 1 atm pressure and 300K. The amount of Ar in mixture.
1. 3 moles
2. 0.6 moles
3. 0.2 moles
4. 1 moles

Volume of 1.5 mole of a gas at 1 atm. pressure and 273K is

Volume of 0.5 mole of a gas at 1 atm. pressure and 273^@C is

How many moles of Helium gas occupy 22.4L at 0C and 1atm pressure

A mixture of ethane and ethene occupies 41 L at 1 atm and 500 K. The mixture reacts compeletly with 10/3 mole of oxygen to produce CO_(2) and water. The mole fraction of ethane and ethene in the mixture are (R=0.0821L atm K^(-1)mol^(-1) respectively

At 127°C and l atm pressure, a mixture of a gas contains 0.3 mole of N_(2) , 0.2 mole of O_(2) The volume of the mixture is

For a mixture of I mole He and 1 mole Ne, select the correct statements(s)

1g H_(2), 2g He and 3g NO are contained in 1.1 L flask at 300 K. Total pressure exerted by the mixture is :

An ideal mixture of liquids A and B with 2 moles of A and 2 moles of B has a total vapour pressure of 1 atm at a certain temperature. Another mixture with 1 mole of A and 3 moles of B has a vapour pressure greater than 1 atm. But if 4 moles of C are added to second mixture, the vapour pressure comes down to 1 atm. Vapour pressure of C, P_(C)^(@)=0.8 atm. Calculate the vapour pressure of pure A and B :

A mixture of NO_2 and N_2O_4 has a vapour density of 38.3 at 300K. What is the number of moles of NO_2 in 110g of the mixture?

A mixture of NO_2 and N_2O_4 has a vapour density of 38.3 at 300K. What is the number of moles of NO_2 in 150g of the mixture?