Chemistry - Solubility of Salts

Which ions make all of their compounds soluble in water?

All sodium, potassium and ammonium compounds are soluble.

What is the solubility of all nitrates?

All nitrates are soluble.

What is the general solubility rule for chlorides?

Most common chlorides are soluble.

Which chlorides do not dissolve in water?

Lead(II) chloride and silver chloride are insoluble.

What is the general solubility rule for sulfates?

Most common sulfates are soluble.

Which sulfates are insoluble or only slightly soluble?

Lead(II) sulfate, barium sulfate, silver sulfate and calcium sulfate are not normally soluble.

What is the general solubility rule for carbonates?

Most carbonates are insoluble.

Which carbonates are soluble exceptions?

Sodium carbonate, potassium carbonate and ammonium carbonate are soluble.

What is the general solubility rule for metal hydroxides?

Most metal hydroxides are insoluble or almost insoluble.

Which hydroxides dissolve in water easily?

Sodium hydroxide, potassium hydroxide and ammonium hydroxide are soluble.

What is special about calcium hydroxide?

Calcium hydroxide is only slightly soluble in water.

Which two groups contain most of the insoluble salts?

Carbonates and hydroxides contain most of the insoluble compounds.

Apart from carbonates and hydroxides, what is the overall solubility pattern?

Most other ionic compounds are soluble, with a few exceptions in the chlorides and sulfates.

Why are some carbonates and hydroxides still soluble?

They are soluble when they contain sodium, potassium or ammonium, because all compounds of these ions dissolve.

What does 'almost insoluble' mean in the key?

It means the substance dissolves only a very small amount in water and is normally treated as insoluble.

Is barium sulfate soluble or insoluble and why?

Barium sulfate is insoluble because it is one of the sulfate exceptions.

Is silver chloride soluble or insoluble and why?

Silver chloride is insoluble because it is one of the chloride exceptions.

Is sodium carbonate soluble or insoluble and why?

Sodium carbonate is soluble because all sodium compounds are soluble even though most carbonates are not.