Water, solutions and solubility

WAEC Chemistry Revision Notes

  • Physical Chemistry
  • SS2 · Third Term
  • 3 min read
  • Checked by imtiaz ahmed

The sources, types, uses and structure of water, its laboratory preparation and tests, hardness and its removal, water treatment, and solutions, solubility, solubility curves and colloids.

In these notes
  1. Water as a solvent
  2. Sources and treatment
  3. Hardness of water
  4. Solutions, suspensions and colloids
  5. Solubility
  6. Solubility curves
  7. Preparing and testing water
  8. Removing hardness
  9. Uses of solubility
  10. Worked theory answer

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All Chemistry notes
  1. SS1
    1. Foundations of Chemistry
      1. Introduction to chemistry
      2. Laboratory apparatus and practical skills
      3. Matter and separation techniques
      4. Symbols, formulae and equations
      5. Particulate nature of matter
      6. Mass and volume relationships
    2. Atomic Structure, Bonding and the Periodic Table
      1. Atomic structure and chemical combination
      2. Orbitals and electronic structure
    3. Physical Chemistry
      1. Kinetic theory and gas laws
      2. Acids, bases and salts
    4. Non-metals and Their Compounds
      1. Carbon and its compounds
    5. Organic Chemistry
      1. Crude oil and petrochemicals
    6. Chemistry, Industry and Society
      1. Industrial chemistry
  2. SS2
    1. Atomic Structure, Bonding and the Periodic Table
      1. Periodic table
    2. Physical Chemistry
      1. Redox reactions
      2. Electrolysis
      3. Faraday's laws of electrolysis
      4. Electrochemical cells and corrosion
      5. Rates of chemical reactions
      6. Energy and chemical reactions
      7. Chemical equilibrium
      8. Water, solutions and solubility
      9. Volumetric analysis
    3. Non-metals and Their Compounds
      1. Oxygen and its compounds
      2. The halogens
      3. Nitrogen and its compounds
      4. Sulphur and its compounds
    4. Organic Chemistry
      1. Hydrocarbons, isomerism and alkanols
      2. Alkenes, alkynes and benzene
  3. SS3
    1. Atomic Structure, Bonding and the Periodic Table
      1. Chemical bonding and molecular shapes
      2. Nuclear chemistry and radioactivity
    2. Physical Chemistry
      1. Qualitative analysis of ions and gases
    3. Metals and Their Compounds
      1. Reactivity series and extraction of metals
      2. Reactive metals, aluminium, tin and lead
      3. Iron, copper, zinc and alloys
    4. Organic Chemistry
      1. Alkanoic acids, esters and polymers
      2. Fats, oils, soaps and detergents
      3. Carbohydrates and proteins
      4. Amines and amides

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