2.2 The Mole

• relate the mole to the relative atomic mass
• carry out conversions involving mass and moles of chemical substances
• determine formulae of compounds from experimental results and given data
• determine percentage composition of different substances in a compound
• prepare a dilute solution from a concentrated solution
• investigate acid-base titration in a laboratory
• advocate for safe use of reagents and equipment in the laboratory

“Why is the mole important in chemical reactions?”

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1. The mole
   40 min · 1 practice tasks · quiz
   Explain the mole as a unit for counting particles.
2. Relative atomic and formula mass
   40 min · 1 practice tasks · quiz
   Determine relative atomic and relative formula mass.
3. Converting between mass and moles
   40 min · 1 practice tasks · quiz
   Carry out conversions involving mass and moles.
4. The empirical formula
   40 min · 1 practice tasks · quiz
   Determine the empirical formula of a compound from data.
5. The molecular formula
   40 min · 1 practice tasks · quiz
   Determine the molecular formula from the empirical formula and molar mass.
6. Percentage composition
   40 min · 1 practice tasks · quiz
   Determine the percentage composition of a compound.
7. Concentration and molarity
   40 min · 1 practice tasks · quiz
   Express the concentration of a solution in moles per cubic decimetre.
8. Preparing solutions and dilution
   40 min · 1 practice tasks · quiz
   Prepare standard solutions and dilute them.
9. Simple acid-base titrations
   40 min · 1 practice tasks · quiz
   Investigate acid-base titration and carry out calculations.
10. Review of the mole
    40 min · 1 practice tasks · quiz
    Review the mole, formulae, concentration and titrations.