alleryStart learning →A common ion is defined as one that is also produced by the:
AEvaporation of the water
BHeating of the container
CFiltering of the mixture
DDissolution of the compound
Answer & Solution
Correct answer: D. Dissolution of the compound
1. The word common points to an ion shared by two sources.
2. Solubility is less in aqueous solutions containing a common ion.
3. A common ion is one also produced by dissolution of the ionic compound.
4. Adding it from another source suppresses further dissolution.
_Source: OpenStax Chemistry 2e (CC BY 4.0), Ch 15 'Equilibria of Other Reaction Classes', sections 15.1-15.3_
Keep practising Equilibria of Other Reaction Classes
Browse all Equilibria of Other Reaction Classes questions for AP Chemistry, or explore more Chemistry topics.
Related questions
Complete the Lewis definitionsStop on the right constantTrue or false: solubility equilibriaTap what belongs to each Lewis roleMatch each equilibrium constantMolar solubility is preferred for solubility calculations because it expresses dissolved sA metal ion binding several cyanide ligands is best described in Lewis terms as the:Adding sodium chloride to a saturated silver chloride solution lowers the silver chloride