Why is molarity independent of temperature? [closed]








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I can't find a good answer as to why molarity is independent of the temperature. Why is the concentration (in mol/l) independent of the temperature?




First of all, [molarity](http://goldbook.iupac.org/html/A/A00295.html) is **temperature-dependent**.


You might have meant [**molality**](http://goldbook.iupac.org/html/M/M03970.html), because molality is **temperature-independent**.


The reason is very simple, if you see molarity definition, molarity is the amount of substance of solute per **litre** of solvent and that mean it depends on **volume**.  

You know that volume depends on temperature, therefore molarity is also temperature-dependent. 


Molality on the other hand is the amount of substance of the solute per mass of the solvent, both are independent of the temperature.


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