Given sample of `1 cm^3` of hydrogen and `1 cm^3` of oxygen both at N.T.P. Which sample has larger number of molecules?

Calculate the number of molecule present in : 1dm^3 of hydrogen at S.T.P.

The number of moles of BaCO_3 Which contains 1.5 moles of oxygen atom is :

Calculate the minimum work that must be done to compress 1.0 gm of hydrogen isothermally at N.T.P to half its initial volume. Given R=8.314"Jmole"^-1k^-1

0.4 g hydrogen combines with the 3.2 g oxygen to produce water. Hydrogen sulphide is produced by combination of 0.25 g hydrogen and 4.0g sulphur. 1g of sulphur combines with 1 g of oxygen show that the results are in accordance with the law of reciprocal proportion.

1 litre of oxygen at N.T.P. is allowed to react with three times of carbon monoxide at N.T.P. Calculate the volume of each gas found after the reaction

Number of mole of 1 m^3 gas at NTP are :

Find the mass of 100cc of a gas if the RMS velocity of the molecules of gas at N.T.P. is 500m/s. Take normal atmospheric pressure as 1.013xx10^5 N/m^2 .