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There is a mistake in the answers for the GIST problem in section
13.4<br>
involving ppm and ppb. This is on page 538 (14th ed), 545 (13th
ed),<br>
526 (12th ed.), page 542 (11th ed.), page 544 (10th ed.). The error
in<br>
the answer appears in the all four editions.<br>
<br>
The correct answers are 0.23 ppm and 2.30 x 10<sup
class="moz-txt-sup"><span
style="display:inline-block;width:0;height:0;overflow:hidden">^</span>2</sup>
ppb. <br>
<br>
The question might arise as to what the unit is, g SO2/mL soln <br>
or g SO2/g soln. Since these are very dilute aqueous solns <br>
there's very little difference (almost none) since the density of<br>
the solution would be close to that of pure water (~ 1 g/mL). <br>
<br>
Dr. Zellmer
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