Solubility Rules Worksheet

Solubility Rules Worksheet

Read each question carefully and answer to the best of your ability. Use the provided solubility rules to determine the solubility of various ionic compounds.

General Solubility Rules:

1. All alkali metal (Group 1A) ions and ammonium (NH4+) compounds are soluble.

2. All nitrate (NO3-), acetate (CH3COO-), chlorate (ClO3-), and perchlorate (ClO4-) compounds are soluble.

3. Most chloride (Cl-), bromide (Br-), and iodide (I-) compounds are soluble, EXCEPT for those containing Ag+, Pb2+, or Hg2^2+.

4. Most sulfate (SO4^2-) compounds are soluble, EXCEPT for those containing Ca2+, Sr2+, Ba2+, Pb2+, or Ag+.

5. Most hydroxide (OH-) compounds are insoluble, EXCEPT for those containing alkali metals, Ba2+, Sr2+, or Ca2+.

6. Most sulfide (S2-), carbonate (CO3^2-), chromate (CrO4^2-), and phosphate (PO4^3-) compounds are insoluble, EXCEPT for those containing alkali metals or ammonium (NH4+).

1. Which of the following compounds is soluble in water?

2. According to the solubility rules, which ion generally forms soluble compounds with most anions?

3. A precipitate forms when two soluble ionic compounds react to form an   product.

4. All compounds containing the   ion are soluble, with no exceptions.

5. Group 1A metals, also known as   metals, always form soluble compounds.

6. All sulfates are soluble.

7. Lead(II) chloride (PbCl2) is an insoluble compound.

8. Predict if a precipitate will form when aqueous solutions of potassium iodide (KI) and lead(II) nitrate (Pb(NO3)2) are mixed. If so, write the formula of the precipitate.

9. Explain why sodium carbonate (Na2CO3) is soluble in water, but calcium carbonate (CaCO3) is not.

Match the compound with its solubility in water.