Atoms, molecules and stoichiometry

What you'll learn

• Define unified atomic mass unit as one twelfth of the mass of a carbon-12 atom.
• Define and use the terms relative atomic mass, isotopic mass and formula mass in terms of unified atomic mass unit.
• Define and use the term mole in terms of the Avogadro constant.
• Write formulae of ionic compounds from ionic charges and oxidation numbers.
• Analyse mass spectra in terms of isotopic abundances and fragmentation patterns.
• Calculate empirical and molecular formulae using given data.
• Perform calculations, including use of the mole concept involving reacting masses, volumes of gases, and concentrations of solutions.
• Deduce stoichiometric relationships from calculations involving reacting masses, volumes of gases and volumes and concentrations of solutions.

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