Soluble or Insoluble?Soluble Compounds Insoluble CompoundsAll salts of Group I elementsAll nitratesAll ammonium saltsMost chlorides, bromides and iodides Chlorides, bromides and iodides of silver and leadMost sulfates Sulfates of calcium, barium and leadGroup I hydroxides and carbonates Most hydroxides and carbonatesare soluble (calcium hydroxide isslightly soluble)Group I and II oxides react with water Most metal oxides
Soluble or Insoluble?• Potassium bromide• Silver bromide• Sodium hydroxide• Calcium sulfate• Lead iodide
How will you prepare ZnSO4? Since ZnSO4 is a soluble salt (Note: Mostsulphates are soluble), I can use reaction withacid, base or carbonate or titration. If I haveavailable acid and metal then I can do thatinstead of titration. I will then mix zinc powderwith sulphuric acid until no effervescence ispresent. I will then filter it, collect the filtrateand crystallise it. Once I reach a saturatedsolution, I will let it cool. I will then wash it withdistilled water to remove impurities and thendry it on filter paper.
How will you prepare these salts? • CuSO4 (Jorge & Holly) • CaCl (Satu & Alicia) • K2SO4 (Rizal & Vanessa) • PbCl2 (Zaynab & Reem)
TO PREPARE SALTReacting ametal with Reacting anan acid insoluble base with an acid Neutralising an alkali with an Precipitation acid by titration