Chemistry Module 2

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  • Created on: 30-04-18 10:22
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  • Module 2
    • Atomic structure and isotopes
      • Definition of isotopes
      • atomic structure
        • Atomic number, mass number and ionic charge
      • Definition of relative isotopic/ atomic mass
      • Mass spectrometry
        • Determining relative isotopic masses and relative abundances
        • Calculating relative atomic mass from relative abundances of isotopes
      • relative molecular mass and relative formula mass and their calculation from relative atomic mass
    • Compounds, formulae and equations
      • Writing of formulae of ionic compounds from ionic charges
        • Prediction of ionic charge from the position of an element on the periodic table
        • Recall the names and formulae for the given ions
      • construct balanced symbol equations and include state symbols
    • Amount of substance
      • Definition:
        • Amount of substance
        • Mole
        • Avogadro constant
        • Molar mass
        • Molar gas volume
      • Define empirical and molecular formula
      • Calculations of empirical and molecular formula from mass or percentage
      • Define anhydrous, hydrated and water of crystallisation (and calculations of the formula of hydrated salts)
      • Calculations
        • Mass
        • Gas volume
        • Solution, volume and concentration
        • Ideal gas equation- pV=nRT
        • Percentage yield
        • Atom economy
      • Techniques and procedures required during experiments requiring the measurement of mass, volumes of solutions and gas volumes
      • Benefits of sustainability of developing chemical processes with high atom economy
    • Acids
      • Formulae of common acids and alkalis
      • Definition of acid and alkalis
      • Definition of strong and weak acids
      • Neutralisation reaction
        • H+ + OH- = H2O
        • Acids with bases, including carbonates, metal oxides and alkalis form salts
    • Redox
      • rules for assigning and calculating oxidation number for atoms in elements, compounds and ions
      • Writing formulae using oxidation
      • Use of roman numerals to indicate the magnitude of the oxidation number when an element may have compounds/ ions with different oxidation numbers
      • Define oxidation and reduction in terms of electron transfer and changes in oxidation number
    • Bonding and structure
      • Ionic bonding
        • Dot-and-cross and define ionic bonding
        • Explain the giant ionic lattice (solid structures) resulting from oppositely charged ions strongly attracted in all directions
        • explain the effect of structure and bonding on the physical properties of ionic compounds, including m.p and b.p, solubility, electrical conductivity (solid, molten & aqueous)
      • Covalent bonding
        • Define covalent bonding
        • Dot-and-cross diagrams of: single covalent, multiple covalent and dative covalent bonding
    • Electron structure
      • Define orbitals
      • Method of filling shells

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