One potential problem with using molarity to express concentration is that molarity is temperature dependent. If you make a 1.000 M solution of aqueous HCl at 25 degrees celsius, what would the molarity of this solution become if the temperature of the solution is elevated to 97 degrees celsius?
https://viziscience.com/chemistry-mole-concept/molarity-change-temperature/
Is there an equation that I can use that has concentration and temperature together?
To determine the new molarity of the HCl solution when the temperature is elevated, we need to consider the temperature dependence of molarity. The molarity of a solution is defined as the number of moles of solute per liter of solution.
However, the volume of a liquid solute, like water, will change with temperature due to thermal expansion. As a result, the volume of the solution will change, affecting the molarity value. To take this into account, we can use the equation:
M1V1 = M2V2
where M1 is the initial molarity, V1 is the initial volume, M2 is the final molarity, and V2 is the final volume.
In this case, we assume that the volume of the solution remains constant. Therefore, V1 = V2.
Since we want to find the new molarity, which is M2, we can rearrange the equation:
M1 = M2
Substituting the known values:
M1 = 1.000 M
M2 = ?
By substituting M1 = M2 in the equation, we find that the molarity of the HCl solution remains the same even when the temperature is changed. Therefore, the molarity will still be 1.000 M.