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<div class="moz-cite-prefix">On 04/21/2015 12:01 PM, wrote:<br>
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cite="mid:C40B2F181831EF44A88CD73525827803130F177D1F@MERCERMAIL.MercerU.local"
type="cite">
<pre wrap="">Dr. Pounds,
For Burdge problem #66, I understand that Fe(OH)3 will be more soluble in acid because it is a base, but could you explain why they other two answers are more soluble.
Thanks,
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<font face="serif">So when BaSO4 and CaCO3 go into solution they
leave conjugate bases of weak acids in solutions. As such, if
there is an acid around the H from the acid is going to combine
with them (HSO<sub>4</sub><sup>-</sup> and HCO<sub>3</sub><sup>-</sup>).
</font>By removing the ions from the solution, the system responds
via LeChateliers principle and puts more of the SO4<sup>2-</sup> and
CO3<sup>2-</sup> in solution. As such, these ions are more soluble
in acid.<br>
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<pre class="moz-signature" cols="72">--
Andrew J. Pounds, Ph.D. (<a class="moz-txt-link-abbreviated" href="mailto:pounds_aj@mercer.edu">pounds_aj@mercer.edu</a>)
Professor of Chemistry and Computer Science
Mercer University, Macon, GA 31207 (478) 301-5627
<a class="moz-txt-link-freetext" href="http://faculty.mercer.edu/pounds_aj">http://faculty.mercer.edu/pounds_aj</a>
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