Oxygen gas is present,in a 1.0 L flask at a pressure of `7.6 xx 10^(-10)mm` Hg at `27^@C`. Calculate the number of oxygen atoms in the "flask

Oxygen gas is present in a 1L flask ata pressure 7.6xx10^(-10)mm Hg at 0^(@)C . Calculate the number of O_(2) molecules in the flask.

A 2L flask contains 0.4 g O_(2) and 0.6 g H_(2) at 100^(@)C . Calculate the total pressure of the gas mixture in the flask.

1 mol of an ideal gas is expanded from volume V_(1) " to " 10 V_(1) . If work done by the gas is 10 kJ and the initial pressure of the gas is 1xx10^(7) Pa , then calculate V_(1) . What will be the temperature of the gas if the amount is 2 mol ?

A flask of volume 1 litre contains vapour of CH_3OH at a pressure of 1 atm and 25^@C . The flask was then evacuated till the final pressure drop to 10^(-1) mm. Find the number of molecules of CH_3OH left in the flask.

What is the number of oxygen molecules in 10 mole of oxygen molecule?

Two flasks of equal volumes have been joined by a narrow tube of negligible volume. Initially both flasks are at 300 K containing 0.60 mol of O_2 gas at 0.5 atm pressure. One of the flasks is then placed in a thermostat at 600 K. Calculate number of moles of _2 2 gas in each flask.

The amount of charge present in a charged body is 3.2xx10^(-17)C . If the charge of an electron be e=-1.6xx10^(-19)C , then calculate the number of deficit of electrons in that body.

A gas of molar mass 84.5 g//mol is enclosed in a flask at 27^@C has a pressure of 2 atm. Calculate the density of the gas. [R = 0.082 L atm K^(-1) mol^(-1)]

Two flasks of equal volume are connected by a narrow tube of negligible volume and are filled with N_(2) gas. When both the flasks are immersed in boiling water the gas pressure inside the system is 0.5 atm. Calculate the pressure of the system when one of the flasks is immersed in ice water while the other flask in boiling water.

Some air is enclosed in a flask at a temperature of 20^@C and at atmospheric pressure, by means of a cork at the mouth of the flask. Due to rise in temperature,if the pressure inside the flask becomes 1.7 times,then the cork is blown out,Determine the increased temperature.