GIST on in section 13.4 - mistake in answer

robert zellmer zellmer.1 at osu.edu
Thu Jun 7 13:04:27 EDT 2018


There is a mistake in the answers for the GIST problem in section 13.4
involving ppm and ppb.  This is on page 538 (14th ed), 545 (13th ed),
526 (12th ed.), page 542 (11th ed.), page 544 (10th ed.).  The error in
the answer appears in the all four editions.

The correct answers are 0.23 ppm and 2.30 x 10^2 ppb.

The question might arise as to what the unit is, g SO2/mL soln
or g SO2/g soln.  Since these are very dilute aqueous solns
there's very little difference (almost none) since the density of
the solution would be close to that of pure water (~ 1 g/mL).

Dr. Zellmer
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