Sunday, July 9, 2017

2.43C: Practical: Prepare a Sample of Pure, Dry Lead (II) Sulfate



PREPARATION OF PURE, DRY LEAD (II) SULFATE CRYSTALS:
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PREPARATION OF LEAD (II) SULFATE CRYSTALS
Diagram showing Filtration of Mixture to Remove Precipitate

SOLUBLE SALT 1 = Lead (II) Nitrate        SOLUBLE SALT 2 = Potassium Sulfate

METHOD:

  • Lead (II) Nitrate and Potassium Sulfate is dissolved in a beaker of Water and mixed together using a stirring rod
  • Mixture is filtered to remove precipitate from mixture
  • Filtrate is washed with Water to remove traces of Potassium Nitrate Solution
  • Leave in an oven to dry

EQUATION OF REACTION:


Lead (II) Nitrate   +   Potassium Sulfate  →   Lead (II) Sulfate  +   Potassium Nitrate
        
    Pb(NO3)2  (s)                    K2SO4 (s)                          PbSO4 (s)                  KNO3 (s)


3 comments:

  1. Lead (II) nitrate and potassium sulfate should be aqueous (aq) because all nitrates and potassium salts are soluble

    ReplyDelete
    Replies
    1. Correct for anyones reference is
      Pb(NO₃)₂ (aq) + K₂SO₄ (aq) → PbSO₄ (s) + 2KNO₃ (aq)

      Delete
  2. the procedure done here is wrong, recheck and correct

    ReplyDelete