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Each of the identical volumetric flasks contains the same solution at two different temperatures. There are two identical volumetric flasks. The first volumetric flask is at 25 degrees Celsius and is filled with a solution to approximately 50% of the neck of the flask. The second volumetric flask is at 55 degrees Celsius and is filled with a solution to approximately 80% of the neck of the flask. What changes for the solution with temperature?

Answer :

Explanation:

We know that molarity is the number of moles of solute present in liter of solution.

Mathematically,   Molarity = [tex]\frac{\text{no. of moles}}{\text{volume in liter}}[/tex]

As molarity is dependent on volume and volume of a solution or substance is dependent on temperature. So, with increase in temperature there will occur a decrease in volume of the solution. As a result, molarity will increase as it is inversely proportional to volume.

Hence, molarity of both the solutions will be different as temperature of both the solutions is different.

In order to obtain changes for the solution with temperature we need to get the molarity for both the solutions.

What is Molarity?

It is the concentration of a solution measured as the number of moles of solute per liter of solution.

It is given by:

[tex]\text{Molarity} = \frac{\text{Number of moles}}{\text{volume}}[/tex]

  • Molarity depends inversely on volume.
  • So, with increase in temperature there will occur a decrease in volume of the solution.
  • Thus, molarity will increase when volume gets decreased.

Hence, Molarity of both the solutions will be different as temperature of both the solutions is different.

Find more information about "Molarity" here:

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