Chemistry Module 2
- Created by: Ellen2745
- 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
- Writing of formulae of ionic compounds from ionic charges
- 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
- Definition:
- 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
- Ionic bonding
- Electron structure
- Define orbitals
- Method of filling shells
- Atomic structure and isotopes
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