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A solution of barium nitrate, Ba(NO₃)2, is mixed with a solution of K₂SO₄. What will be the precipitate?

a.) KNO₃
b.) BaNO₃
c.) Ba₃(PO₄)₂
d.) BaSO₄

User Keylogger
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Final answer:

When mixing Ba(NO₃)₂ with K₂SO₄, barium sulfate (BaSO₄) is the precipitate formed. BaSO₄ is insoluble in aqueous solution, unlike the other product, KNO₃, which remains dissolved.

Step-by-step explanation:

When a solution of barium nitrate, Ba(NO₃)₂, is mixed with a solution of potassium sulfate, K₂SO₄, the resulting double-replacement reaction will form a precipitate. The insoluble product of this reaction will be barium sulfate, BaSO₄, based on solubility rules. The other product, potassium nitrate KNO₃, remains soluble in the aqueous solution.

The chemical equation for the reaction is:

Ba(NO₃)₂ (aq) + K₂SO₄ (aq) → BaSO₄ (s) + 2 KNO₃ (aq)

This demonstrates that option d.) BaSO₄ is the correct choice for the precipitate formed in the reaction.

User YOBA
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