An amount of a substance that contains an Avogadro number of particles (6.02 x 10^23)
The Avogadro constant is 6.02 x 10^23
One mole of any substance
Contains an Avogadro number of particles (atoms, molecules, ions or electrons)
The mass of one mole of any substance is exactly the same number of grams as the relative atomic mass (A) or relative formula mass (M) of the element or compound
Examples of mole masses
1 mole of carbon = 12 g
1 mole of N2 = 28 g
1 mole of CO2 = 44 g
Formula to find number of moles
Number of moles = mass in g / M (of the element or compound)
Steps to balance equations using moles
Write balanced symbol equation
Use mole ratios from equation to calculate amounts of each substance
Multiply all numbers in equation by a common factor to get whole number mole values
