BaSO4 is not likely to be soluble in water. According to solubility rules, most sulfates are soluble, but barium sulfate is an exception. It forms a precipitate because the attraction between Ba2* and SO.2ions is too strong for water molecules to separate them. Therefore, BaSO4 is considered insoluble in water.

Question

BaSO4 is not likely to be soluble in water. According to solubility rules, most sulfates are soluble, but barium sulfate is an exception. It forms a precipitate because the attraction between Ba2* and SO.2ions is too strong for water molecules to separate them. Therefore, BaSO4 is considered insoluble in water.
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GPT-4o mini · Answer

BaSO4, or barium sulfate, doesn't dissolve well in water. Even though most sulfates are soluble, barium sulfate is an exception. It forms a solid, called a precipitate, because the connection between Ba2+ and SO4²- ions is too strong for water molecules to pull them apart. That's why we say BaSO4 is not soluble in water.