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How to Increase the Rate of Dissolving

The rate at which a solute dissolves in a solvent is important in the field of chemical kinetics, which involves the study of the rates of chemical reactions. Dissolution of a solute is often a precursor step in chemical reactions. Increasing the rate at which a material dissolves reduces the amount of time required to create a solution of a particular molarity and often speeds up the reaction rate.

Things You'll Need

  • Magnetic hotplate
  • Stir bar
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Instructions

    • 1

      Place the vessel containing the solvent onto the magnetic heat plate.

    • 2

      Turn on the heat plate and set it to a temperature slightly above room temperature. Generally, the temperature should not exceed 50 to 59 degrees Fahrenheit above room temperature.

    • 3

      Drop the magnetic stir bar into the solvent vessel.

    • 4

      Turn the magnetic stirring function of the heat plate to a medium setting. This will cause a stir bar inside the vessel to spin and agitate the solvent.

    • 5

      Add the material to be dissolved into the solvent mixture. The material should be added no faster than the solvent is able to dissolve. Otherwise, clumping may occur. Continue this until all material able to be dissolved by the solvent is added. This saturation point is signified by small particles of solute that spin around in the mixture and do not dissolve.

    • 6

      Remove the solution vessel from the heat plate and turn off the heating and stirring functions.

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