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Moles and reacting masses

4 lessons in Quantitative chemistry.

20 exam questions · 42 marks

3.5 The mole and Avogadro's constant What a mole is, the Avogadro constant, and how to convert between mass, moles and numbers of particles using Mr and 6.02 × 10^23. Higher only AQA Edexcel OCR 3.6 Reacting masses from equations How to use a balanced equation and relative formula masses to calculate the mass of a reactant or product, and how to work out the balanced equation from the masses that react. AQA Edexcel OCR 3.7 Limiting reactants What limiting reactants and reactants in excess are, how to identify the limiting reactant using moles, how it controls the mass of product, and how to use moles to balance equations. Higher only AQA Edexcel OCR 3.8 Concentration of solutions in g/dm³ What concentration means, how to calculate the concentration of a solution in g/dm3 from the mass of solute and volume, converting cm3 to dm3, and how changing the mass or volume changes the concentration. AQA Edexcel OCR