The following links offer some useful revision to support your learning:
BBC Bitesize – Balanced Equations
BBC Bitesize Video – Balanced Equations
BBC Bitesize Video – Calculations from Balanced Equations
Miss Adams – Balancing Equations
BBC Bitesize – The Mole and Concentration of Solutions
BBC Bitesize Video – The Mole and Concentration of Solutions
To help with your learning, you may also wish to try some of the following resources:
Magnesium Oxide Experiment Video
Within the National 5 Chemistry course, you will need to know:
- Calculations involving the mole and balanced equations Chemical equations, using formulae and state symbols, can be written and balanced.
- The mass of a mole of any substance, in grams (g), is equal to the gram formula mass and can be calculated using relative atomic masses.
- Calculations can be performed using the relationship between the mass and the number of moles of a substance.
- A solution is formed when a solute is dissolved in a solvent.
- For solutions, the mass of solute (grams or g), the number of moles of solute (moles or mol), the volume of solution (litres or l) or the concentration of the solution (moles per litre or mol l-1 ) can be calculated from data provided.
- Given a balanced equation, the mass or number of moles of a substance can be calculated given the mass or number of moles of another substance in the reaction.
