The best vacuum so far attained in laboratory is `10^(-10)mm` of `Hg`. What is the number of molecules of gas remain per `cm^(3)` at `20^(@)C` in this vacuum?

The volume of a gas in discharge tube is 1.12 xx 10^(-7) ml, at 0^(@)C and 1 atm. The number of molecule of gas in the tube is-

A chamber containing a gas was evacuated till the vacuum attained was 10^(-14) m of Hg. If the temperature of the chamber was 30^(@)C, the number of molecules that remains in it per cubic metre is

Oxygen is present in a 1 litre flask at a pressure of 7.6 xx 10^(-10) mm of Hg. Calculate the number of oxygen molecules in the flask at 0^@C

The highest vacuum attained so far is of the order of 10^(-11) mm of mercury. How many molecules are there in 1 cc of a vessel under such a high vacuum at 0^(@)C ?

The numbers of molecules in 10.46L of gas at 0^(@) C and 1 atmosphere pressure is approximate

N_(2) gas is present in one litre flask at a pressure of 7.6 xx 10^(-10) mm of Hg. The number of N_(2) gas molecules in the flask at 0°C are

A gas jar contains 7.2 xx 10^(20) molecules of NH_(3) gas. Find : number of moles

In a very good vacuum system in the laboratory, the vacuum attained was 10^-13 atm . If the temperature of the system was 300 K , the number of molecules present in a volume of 1 cm^3 is.

10 dm^(3) of N_(2) gas and 10 dm^(3) of gas X contain the same number of molecules at the same temperature, the gas (X) may be

2.24 dm^(3) of dry ammonia gas contain 6 x 10^(22) molecules at S.T .P. Calculate the number of molecules in 56 cm^(3) of dry nitrogen at S.T.P.