What volume will 250 g of mercury occupy ?

Name an ore of mercury?

What is tailing of mercury ?

Molar volume is the volume occupied by 1 mol of any (ideal) gas at standard temperature and pressure (STP : 1 atmospheric pressure, 0^@C ). Show that it is 22.4 litres.

What is meant by saying that atmospheric pressure is 75 cm of mercury?

At what pressure a quantity of gas will occupy a volume of 60 mL, if it occupies a volume of 100mL at a pressure of 720 mm (while temperature is constant) :

What volume is occupied by 0.5 mole of nitrogen gas at N.T.P?