2.1 Salts II

• classify salts as soluble and insoluble in water
• describe factors affecting solubility of salts
• investigate separation of salts using fractional crystallisation
• analyse the presence of ions in a given salt
• outline the significance of solubility of salts in real-life situations
• appreciate the significance of solubility of salts in day-to-day life

“How are salts significant on day to day life?”

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1. What salts are
   40 min · 1 practice tasks · quiz
   Explain what a salt is and how salts form.
2. Solubility of salts
   40 min · 1 practice tasks · quiz
   Classify salts as soluble and insoluble in water.
3. Factors affecting solubility
   40 min · 1 practice tasks · quiz
   Describe the factors that affect the solubility of salts.
4. Solubility curves
   40 min · 1 practice tasks · quiz
   Interpret solubility curves and use them to find crystallised mass.
5. Crystallisation from solution
   40 min · 1 practice tasks · quiz
   Describe how a salt is obtained by crystallisation.
6. Fractional crystallisation
   40 min · 1 practice tasks · quiz
   Describe fractional crystallisation and its applications.
7. Tests for cations
   40 min · 1 practice tasks · quiz
   Describe tests for cations in solution using NaOH and NH3.
8. Tests for anions
   40 min · 1 practice tasks · quiz
   Describe tests for common anions in solution.
9. Flame tests
   40 min · 1 practice tasks · quiz
   Describe flame tests for common metal ions.
10. Analysing an unknown salt
    40 min · 1 practice tasks · quiz
    Use a scheme of tests to identify an unknown salt.
11. Significance of salts
    40 min · 1 practice tasks · quiz
    Explain the significance of the solubility of salts in daily life.
12. Review of salts II
    40 min · 1 practice tasks · quiz
    Review solubility, crystallisation, ion tests and flame tests.