Suppose that aqueous solutions of barium nitrate and potassium carbonate are mixed. What is the name of the compound that precipitates?
A
Potassium nitrate
B
Barium carbonate
C
Barium nitrate
D
Potassium carbonate
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1
Identify the reactants in the problem: barium nitrate (Ba(NO3)2) and potassium carbonate (K2CO3).
Write the balanced chemical equation for the reaction: Ba(NO3)2 (aq) + K2CO3 (aq) → BaCO3 (s) + 2 KNO3 (aq).
Determine the solubility of the products: Barium carbonate (BaCO3) is insoluble in water and will precipitate, while potassium nitrate (KNO3) is soluble.
Identify the precipitate: Since BaCO3 is insoluble, it forms a solid precipitate in the solution.
Conclude that the compound that precipitates is barium carbonate (BaCO3).