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IB Chemistry 1.4.3 Molar mass (M) Questions

IB Chemistry 1.4.3 Molar mass (M) Questions
IB Chemistry syllabusChemistry SL/HLFirst assessment 2025

Use molar mass to move between mass and amount, then apply equation ratios to find reacting masses, solution volumes or an unknown M.

How this is tested

  • calculate moles of O2 needed for complete combustion of a given mass of C3H8
  • find reagent mass or volume from M, n, and the equation, e.g. H2SO4 needed for TlOH
  • determine molar mass from measured mass and amount, e.g. 0.108 g / 0.00180 mol = 60.0 g mol^-1
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