A sample of gas is collected over water at at a barometric pressure of 751 mm Hg (vapour pressure of water at is 21 mm Hg).The partial pressure of gas in the sample collected is

A sampel of O_2 gas is called over water at 23^@C at a barometric pressure of 751 mm Hg (vapour pressure of water at 23^@C is 21mm Hg) The partial pressure of O_2 ga sin the sample collected is

A sample of O_(2) gas is collected over water at 23^(@)C at a barometric pressure of 751 mm Hg (vapour pressure of water at 23^(@)C is 21 mm Hg). The partical pressure of O_(2) gas in the sample collected is

A sample of O_(2) gas is collected over water at 23^(@)C at a barometric pressure of 751 mm Hg (vapour pressure of water at 23^(@)C is 21 mm Hg). The partical pressure of O_(2) gas in the sample collected is

A given mass of a gas collected over water vapour at 25^(@)C has a pressure of 500 mm Hg. Calculate the pressure if its volume is reduced to half of its original volume (aqueous tension at 25^(@)C="24 mm of Hg" ).

If a mixture of gas has a total pressure of 100 cm Hg and the partial pressure of nitrogen in the mixture is 25 mm Hg, then the per cent of nitrogen in the mixture is :