What is the theory behind the precipitation reaction between aqueous solution of barium chloride
What is the theory behind the precipitation reaction between aqueous solution of barium chloride with aqueous solution of sodium sulphate ?
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When a solution of sodium sulphate is rnixed with a solution of barium chloriiie, ihe foilorving double displacement reaction takes place :
Na2SO4(aq) + BaCl2(aq) → BaSO4(s) + 2NaCI(aq)
in this reaction, sulphate ions from sodium sulphate are displaced by chloride ions (Cl- ) and chloride ions in barium chloride are displaced by sulphate ions. As a result, a white precipitate of barium sulphate is formed and sodium chloride remains in the solution.
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