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| ==Etymology== | | ==Etymology== |
| com- + [[Latin]] centrum [[center]] | | com- + [[Latin]] centrum [[center]] |
− | *Date: [http://www.wikipedia.org/wiki/17th_Century 1641] | + | *Date: [https://www.wikipedia.org/wiki/17th_Century 1641] |
| ==Definitions== | | ==Definitions== |
| :transitive verb | | :transitive verb |
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| In [[chemistry]], '''concentration''' is the [[measure]] of how much of a given substance there is mixed with another substance. This can apply to any sort of chemical mixture, but most frequently the [[concept]] is limited to [[homogeneous]] solutions, where it refers to the amount of solute in the solvent. | | In [[chemistry]], '''concentration''' is the [[measure]] of how much of a given substance there is mixed with another substance. This can apply to any sort of chemical mixture, but most frequently the [[concept]] is limited to [[homogeneous]] solutions, where it refers to the amount of solute in the solvent. |
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− | To concentrate a solution, one must add more [http://en.wikipedia.org/wiki/Solute solute] (e.g. alcohol), or reduce the amount of [http://en.wikipedia.org/wiki/Solvent solvent] (e.g. water). By [[contrast]], to dilute a solution, one must add more solvent, or reduce the amount of solute. | + | To concentrate a solution, one must add more [https://en.wikipedia.org/wiki/Solute solute] (e.g. alcohol), or reduce the amount of [https://en.wikipedia.org/wiki/Solvent solvent] (e.g. water). By [[contrast]], to dilute a solution, one must add more solvent, or reduce the amount of solute. |
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− | Unless two substances are fully [http://en.wikipedia.org/wiki/Miscible miscible] there exists a concentration at which no further solute will dissolve in a solution. At this point, the solution is said to be [http://en.wikipedia.org/wiki/Saturation_(chemistry) saturated]. If additional solute is added to a saturated solution, it will not dissolve (except in certain circumstances, when [http://en.wikipedia.org/wiki/Supersaturation supersaturation] may occur). Instead, [http://en.wikipedia.org/wiki/Phase_(matter)#Phase_separation phase separation] will occur, leading to either coexisting phases or a [http://en.wikipedia.org/wiki/Suspension_(chemistry) suspension]. The point of saturation depends on many variables such as ambient temperature and the precise chemical [[nature]] of the solvent and solute. | + | Unless two substances are fully [https://en.wikipedia.org/wiki/Miscible miscible] there exists a concentration at which no further solute will dissolve in a solution. At this point, the solution is said to be [https://en.wikipedia.org/wiki/Saturation_(chemistry) saturated]. If additional solute is added to a saturated solution, it will not dissolve (except in certain circumstances, when [https://en.wikipedia.org/wiki/Supersaturation supersaturation] may occur). Instead, [https://en.wikipedia.org/wiki/Phase_(matter)#Phase_separation phase separation] will occur, leading to either coexisting phases or a [https://en.wikipedia.org/wiki/Suspension_(chemistry) suspension]. The point of saturation depends on many variables such as ambient temperature and the precise chemical [[nature]] of the solvent and solute. |
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| [[Category: Chemistry]] | | [[Category: Chemistry]] |
| [[Category: General Reference]] | | [[Category: General Reference]] |