# Worksheet: Molar Solubilities from Solubility Products

In this worksheet, we will practice calculating the molar solubility of an ionic solid from its molecular formula and solubility product.

Q1:

Which of the following calcium salts is the most soluble, in moles per liter?

 Calcium Salt 𝐾 s p C a ( O H ) 2 C a C O 3 C a S O · 2 H O 4 2 C a C O · H O 2 4 2 C a ( P O ) 3 4 2 1 . 3 × 1 0   8 . 7 × 1 0   6 . 1 × 1 0   1 . 9 6 × 1 0   1 . 3 × 1 0   
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Q2:

Solutions of contain and ions. What is the molar solubility of , given that its solubility product, , is ? Assume that dissolution is the only process affecting the value of .

• A M
• B M
• C M
• D M
• E M

Q3:

What is the molar solubility of , a salt containing the ion, given that its solubility product, , is ? Assume that dissolution is the only process affecting the value of .

• A M
• B M
• C M
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Q4:

What is the molar solubility of , given that its solubility product, , is ? Assume that dissolution is the only process affecting the value of .

• A M
• B M
• C M
• D M
• E M

Q5:

What is the molar solubility of aluminum hydroxide, , in a 0.015 M solution of aluminum nitrate, ? The of is .

• A M
• B M
• C M
• D M
• E M

Q6:

What is the molar solubility of cadmium sulfide in a 0.010 M solution of cadmium bromide ? The of is .

• A M
• B M
• C M
• D M
• E M

Q7:

What is the molar solubility of if its solubility product, , is ?

• A M
• B M
• C M
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Q8:

Calomel, , is a compound composed of the diatomic ion of mercury(I), , and chloride ions, . Although most mercury compounds are now known to be poisonous, eighteenth-century physicians used calomel as a medication. Their patients rarely suffered any mercury poisoning from the treatments because calomel is quite insoluble. What is the molar solubility of ?

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• B M
• C M
• D M
• E M

Q9:

The of lead(II) iodide, , is . What is the molar solubility of lead(II) iodide?

• A M
• B M
• C M
• D M
• E M

Q10:

The of copper(I) bromide, , is . What is the molar solubility of copper bromide?

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• B M
• C M
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• E M

Q11:

The of silver iodide, , is . What is the molar solubility of silver iodide?

• A M
• B M
• C M
• D M
• E M

Q12:

The of calcium hydroxide, , is . What is the molar solubility of calcium hydroxide?

• A M
• B M
• C M
• D M
• E M

Q13:

Most barium compounds are very poisonous; however, barium sulfate is often administered internally as an aid in the X-ray examination of the lower intestinal tract. This use of is possible because of its low solubility. To 3 significant figures, what is the mass of barium present in 1.75 L of water saturated with ? The for is .

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• C g
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• E g

Q14:

The of is . What is the minimum volume of water needed to dissolve 0.100 g of ?

Q15:

The of silver(I) bromide is . What is the molar solubility of in a 0.025 M aqueous solution of ?

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• B M
• C M
• D M
• E M

Q16:

The of milk of magnesia is . How many grams of milk of magnesia would be soluble in 200 mL of water at ?

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• E g

Q17:

The of zinc(II) cyanide is and the molar mass is 117.44 g/mol. How many grams of would be soluble in 125 mL of water?

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• C g
• D g
• E g

Q18:

Two hypothetical salts, and , have the same molar solubility in water. If of is , what is the of ?

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Q19:

What is the molar solubility of in a 0.250 M solution of ? Take and .

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• C M
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Q20:

What is the molar solubility of in a 0.15 M solution of ? Take and .

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• C M
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Q21:

The acid dissociation constant, , of is and the solubility product, , of is . Calculate, to 2 significant figures, the molar solubility of in a 0.125 M solution of .

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Q22:

The solubility product, , of is and the base dissociation constant, , of is . Calculate, to 2 significant figures, the molar solubility of in a 0.138 M solution of .

• A M
• B M
• C M
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Q23:

The acid dissociation constant, , of is and the solubility product, , of is . Calculate, to 2 significant figures, the molar solubility of in a buffer solution containing and .

• A M
• B M
• C M
• D M
• E M