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What makes FeCl3 a stronger acid than FeCl2?

April 26, 2017acid Chemistry Mathematics stronger

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What makes FeCl3 a stronger acid than FeCl2?

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There are no hydrogen atoms in the above therefore the question can’t refer to an Arrhenius or Bronsted/Lowery acid. It is a Lewis acid defined as a species with the ability to accept a pair of electrons from a donor. Since Fe in FeCl3 is more deficient in electrons than in FeCl2 it will naturally have a greater affinity to accept electrons and is the stronger Lewis acid.