random knowledge needed

• Sulphuric acid


  H2SO4
• nitric acid


  HNO3
• hydrochloride acid

  HCl
• sodium chloride


  NaCl
• phosphate ion


  PO4 3-
• manganate ion


  MnO4 -
• hydrogen carbonate ion


  HCO3 -
• ammonium ion

  NH4 +
• olll iodide salts are insoluble
• all bromide salts are insoluble
• all ammonium salts are soluble
• all potassium salts are soluble
• all sodium salts are soluble
• all carbonates are insoluble except sodium, potassium and ammonium
• all sulphites are soluble except calcium, barium and lead
• all chlorides are soluble except silver and lead
• all nitrates are soluble
• to test for bromide ions add aq silver nitrate —> forms cream precipitate
• to test for chloride ions add aq silver nitrate —> white precipitate forms
• to test for iodide ions add aq silver nitrate and yellow precipitate will form
• why is nitric acid added before silver nitrate in a halide ion test?

  to remove carbonate impurities
• test for sulfate ions

  add HCl and bariuk chloride --> white precipitate forms