Mistake in End-of-Chapter problem 20.24(d) in the 12th ed or 20.26(d) in 13th & 14th eds.

[robert zellmer]

There is a mistake in problem 20.24(d) in the 12th ed. and 20.26(d) in
the 13th and 14th ed. in the textbook. Based on what I know (and I
discussed with others) we've concluded  the mistake most likely lies
with the problem itself.

It lists one of the products as being Br^-(aq).  That is unlikely based
on what the usual 1/2-rx is in acid for BrO3^- and the fact the Br^-
and BrO3 would actually react with each other to form Br2 (bromine).
So instead of Br-(aq) it should have Br2(/l/) (liquid bromine).  It makes
much more sense this way based on the 1/2-rx given in Appendix D
and the answer in the solutions manual.  Turns out, it has been corrected
to Br2(/l/) in the MC on-line homework.

Also, many of the answers in the solutions manual leave out most of
the intermediate steps and show only the final 1/2-rxs.  Do the problems
the way I showed in lecture (and as shown in the book) and you should
get the 1/2-rxs shown in the solutions manual.

Dr. Zellmer
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