COMMON ION Meaning and
Definition
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A common ion is a term used in chemistry to describe an ion that is commonly found in chemical compounds and is derived from the same element. It refers to an ion that is produced when the same element is present in two or more compounds, either in ionic or covalent compounds.
In ionic compounds, a common ion is formed when an element in a compound dissociates into its ions. For example, in the compound sodium chloride (NaCl), the sodium ion (Na+) and chloride ion (Cl-) are the common ions. Another example is calcium carbonate (CaCO3), where the calcium ion (Ca2+) and carbonate ion (CO32-) are the common ions.
In covalent compounds, a common ion is formed when a polyatomic ion is present in different compounds. For instance, the nitrate ion (NO3-) is a common ion found in compounds like sodium nitrate (NaNO3) and potassium nitrate (KNO3).
The presence of common ions can significantly affect the solubility of a compound in a solution. When a compound contains a common ion with a solution, the solubility of that compound is decreased. This phenomenon is known as the common ion effect. It occurs because the common ion already present in the solution reduces the thermodynamic driving force for the compound to dissolve.
Overall, common ions play an essential role in understanding the behavior and properties of chemical compounds, as well as the relationship between solubility and solution composition.
Common Misspellings for COMMON ION
- xommon ion
- vommon ion
- fommon ion
- dommon ion
- cimmon ion
- ckmmon ion
- clmmon ion
- cpmmon ion
- c0mmon ion
- c9mmon ion
- conmon ion
- cokmon ion
- cojmon ion
- comnon ion
- comkon ion
- comjon ion
- commin ion
- commkn ion
- commln ion
- commpn ion
Etymology of COMMON ION
The word "common ion" is formed by combining the adjective "common" and the noun "ion".
The term "common" comes from the Middle English word "commune", which came from the Latin word "communis" meaning "belonging to all, general, shared". It can also refer to something that is widely known or occurring frequently.
The word "ion" originated from the Greek word "ion" (ἰών), meaning "going" or "one who goes". In 1834, physicist Michael Faraday introduced the term "ion" to describe electrically charged atoms or molecules.
Therefore, when combined, "common ion" refers to an ion that is commonly found or shared in different chemical compounds. It is typically used to describe an ion that is present in both a soluble compound and a slightly soluble or insoluble compound.
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