Using the solubility rules, predict whether barium sulfate (BaSO₄) is soluble or insoluble in water. Explain your reasoning.

Barium sulfate is insoluble because sulfates are generally soluble except when combined with barium, strontium, calcium, silver, or lead.

Will a precipitate form when solutions of lead(II) nitrate (Pb(NO₃)₂) and potassium iodide (KI) are mixed? Explain using solubility rules.

Yes, a precipitate of lead(II) iodide (PbI₂) will form because lead halides are insoluble.

Nitrates have no exceptions to the solubility rule, meaning they are always soluble, regardless of the cation they are paired with.

Grade 11th Grade · Chemistry · 60 min

I can use a Solubility chart to predict whether a precipitate will form in an aqueous solution.

Melissa Maribel · 7:35

Solubility Rules and How to Use a Solubility Table

3 key concepts

1
A solubility table helps determine if a compound is soluble (aqueous) or insoluble (solid).
2
Group 1 metals, ammonium, nitrate, and acetate are generally soluble with no exceptions.
3
Halogens are typically soluble, except when combined with silver, lead, or mercury, which makes them insoluble.

12 questions · Multiple choice & Short answer

Quick comprehension check

“Using the solubility rules, predict whether the compound calcium carbonate (CaCO₃) is soluble or insoluble in water.”

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