Chemistry - the mole

mole

amount of substance of a system

avogadro’s constant

6.02 ×10²³

molar mass

mass per mole of a substance, gmol^-1

avogadro’s law

equal volumes of gases at the same temperature and pressure contain equal number of molecules

molar volume of a gas

volume occupied by one mole of any gas at a specific temperature and pressure, dm³mol^-1

molar gas volume at standard temperature and pressure (273K, 1atm pressure)

22.4dm³mol^-1

molar gas volume at rtp (298K, 1 atm pressure)

24dm³mol^-1

percentage composition of element

(no. of atoms of the element x Ar of element)/Mr x 100