Making insoluble salts (Edexcel GCSE Chemistry Combined Science): Flashcards
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Method used to make insoluble salts
Method used to make insoluble salts
Precipitation reactions
What is a precipitation reaction
What is a precipitation reaction
Two soluble salts react to form an insoluble salt precipitate
Solubility of Na, K, ammonium salts
Solubility of Na, K, ammonium salts
Soluble
Solubility of nitrates
Solubility of nitrates
Soluble
Insoluble chlorides (exceptions)
Insoluble chlorides (exceptions)
Silver chloride and lead chloride
Insoluble sulphates (exceptions)
Insoluble sulphates (exceptions)
Lead sulphate, barium sulphate, calcium sulphate
Solubility of carbonates and hydroxides
Solubility of carbonates and hydroxides
Insoluble (except Na, K, ammonium carbonates)
Reactants to make
Reactants to make
and
Colour of precipitate
Colour of precipitate
White
Why use deionised water in precipitation
Why use deionised water in precipitation
To prevent unwanted ions from interfering
Purpose of filtering in precipitation
Purpose of filtering in precipitation
To separate insoluble salt from solution
Why rinse precipitate with deionised water
Why rinse precipitate with deionised water
To remove soluble impurities (e.g., )
Soluble product when making
Soluble product when making
Sodium nitrate ()