Autoionization of Water Worksheet - Answer Key

 

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  1. Because water is an amphoteric substance, meaning it can be both acidic and basic; thus it is able to autoionize.

     

     

  2. What is autoionization?

    A substance, in this case water, reacting with itself to create ions.

     

     

  3. What is Kw?

    Kw is the equilibrium constant for the autoionization of water.

     

     

  4. Given that the Kw of pure water at 40oC is 2.29 x 10-14
    Calculate the [H+].

    1.51 x 10-7 M