Ion Identification

 

This is part of the HSC Chemistry course under the topic Analysis of Inorganic Compounds. 

HSC Chemistry Syllabus

Conduct qualitative investigations – using flame tests, precipitation and complexation reactions as appropriate – to test for the presence in aqueous solution of the following

  • cations: barium (Ba2+), calcium (Ca2+), magnesium (Mg2+), lead(II) (Pb2+), silver ion (Ag+), copper(II) (Cu2+), iron(II) (Fe2+), iron(III) (Fe3+)

  • anions: chloride (Cl–), bromide (Br–), iodide (I–), hydroxide (OH–), acetate (CH3COO–), carbonate (CO32–), sulfate (SO42–), phosphate (PO43–)

Identifying Cations Using Flame Test, Precipitation and Complexation

This video explores a range of qualitative tests that can be conducted in a school laboratory to identify metal cations including:

  • Barium
  • Calcium
  • Magnesium
  • Lead
  • Silver
  • Copper(II)
  • Iron(II) and Iron(III)

 

Identifying Anions Using Precipitation and pH Indicators

This video explores a range of qualitative tests that can be conducted in a school laboratory to identify anions including:

  • Halides: chloride, bromide and iodide
  • Acetate
  • Phosphate
  • Sulfate
  • Hydroxide
  • Carbonate

 

 

Back to Module 8: Applying Chemical Ideas