Organic Chem

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Classify each as a lewis acid or lewis base...
A)H20
B)O2-
C)Cu2+
D)SO3
E)AlCl3

  • Organic Chem -

    Lewis acids are electron pair acceptors.
    Lewis bases are electron pair donors.
    Look at H2O, for example.

      ..
    H:O:
      ..
      H
    This molecule has no "holes" to accept an electron. Would you expect this to be an acid or a base by Lewis standards?

  • Organic Chem -

    I think it would be a base because like you said it has no space to accept any electrons. As, for the other compounds is this correct:

    O2- is a lewis base
    Cu2+ is a lewis base
    AlCl3 is an acid
    SO3 is an acid

    ????

  • Organic Chem -

    Apparently my response didn't post. I think Cu^+2 will be a Lewis acid. It wants to accept electrons to make that Cu(s).

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