a sample of helium is collected by displacing 145ml of water. The pressure of the gas and the atmosphere are equalized using the maethod described in…

a sample of helium is collected by displacing 145ml of water. The pressure of the gas and the atmosphere are equalized using the maethod described in this experiment. The atomospheric presure is 745mmHg. The temperture of the water and that of the gas are identical at 26%C How many moles of helium have been evoved?