Summary of session 7
- The mole is used to quantify the number of atoms or formula units involved in a reaction or contained in a volume of gas or solution.
- The mole is the amount of substance containing the number of particles equal to Avogadro’s constant, 6.02 x 1023.
- To calculate quantities of reactants and products, it is essential to start with a balanced chemical equation that is viewed from a molar rather than a molecular perspective. The relative molecular mass values for the substances involved must be calculated and, from this information, the masses of the substances involved in the reaction can be determined.
- Concentration is a measure of the amount of solute dissolved in a solution and is measured in mol dm-3.