Solubility Rules for Salts in Water: Key Exceptions and Cations
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6 Terms
What are the solubility rules for nitrate salts?
Most nitrate salts are soluble.
Which ions make most salts containing alkali metals and ammonium soluble?
Alkali metal ions (Li⁺, Na⁺, K⁺, Rb⁺, Cs⁺) and the ammonium ion (NH₄⁺) make most salts soluble.
What is the general solubility of chloride, bromide, and iodide salts?
Most chloride, bromide, and iodide salts are soluble, with exceptions for salts containing Ag⁺, Pb²⁺, and Hg₂²⁺.
What are the notable exceptions for sulfate salts regarding solubility?
Most sulfate salts are soluble, except for BaSO₄, PbSO₄, and CaSO₄.
How soluble are most hydroxides, and which are the important soluble ones?
Most hydroxides are only slightly soluble; the important soluble hydroxides are NaOH and KOH, while Ca(OH)₂, Sr(OH)₂, and Ba(OH)₂ are marginally soluble.
What is the solubility status of sulfide, carbonate, chromate, and phosphate salts?
Most sulfide, carbonate, chromate, and phosphate salts are only slightly soluble, except for those containing the cations from Rule 2.