Making insoluble salts (Edexcel GCSE Chemistry): Flashcards
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Method to form insoluble salts
Method to form insoluble salts
Precipitation reactions
Precipitation reaction definition
Precipitation reaction definition
Two soluble salts react to form an insoluble salt (precipitate)
Solubility of sodium, potassium & ammonium salts
Solubility of sodium, potassium & ammonium salts
Soluble
Solubility of nitrates
Solubility of nitrates
Soluble
Insoluble chloride exceptions
Insoluble chloride exceptions
Silver chloride and lead chloride
Insoluble sulphate exceptions
Insoluble sulphate exceptions
Lead sulphate, barium sulphate, calcium sulphate
Solubility of carbonates & hydroxides
Solubility of carbonates & hydroxides
Insoluble (except Na, K, ammonium carbonates)
Reactants to make lead chloride
Reactants to make lead chloride
Lead nitrate and sodium chloride
Why use deionised water?
Why use deionised water?
To prevent unwanted ions from interfering
Colour of lead chloride precipitate
Colour of lead chloride precipitate
White
Purpose of filtering in precipitation method
Purpose of filtering in precipitation method
Separate insoluble salt from solution
Purpose of rinsing precipitate
Purpose of rinsing precipitate
Remove soluble substances like sodium nitrate
Purpose of drying the precipitate
Purpose of drying the precipitate
To obtain a pure, dry sample