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Answer the following chemistry question: 3. (a)  The pKa for ferric ion Fe(+3) is 2.   The pKa for cupric...

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Chemistry

Answer the following chemistry question:

3. (a)  The pKa for ferric ion Fe(+3) is2.   The pKa for cupric ion Cu(+2) is9.  

              Whichis a stronger Bronsted acid?  Give and explain tworeasons for the ten million-fold difference in their acidities

b)  The Ksp forsilver tarnish, that is the black Ag2S, is10-39, one of the smallest values indicating a VERYinsoluble solid.  Why is silver sulfide so insoluble?

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