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October 25, 2014

Homework Help: Chemistry

Posted by John on Saturday, February 6, 2010 at 11:49pm.

Ca(IO3)2(s) ⇌ Ca^(2+)(aq) + 2IO3^(-)(aq)

First, you poured 30 mL of 0.100 M Ca^(2+) solution over a 2.000 g sample of solid Ca(IO3)2 and allowed the mixture to sit for 30 minutes. Some of the solid dissolved, causing the calcium ion concentration to increase by a certain quantity and the iodate concentration to increase by two times that certain quantity. Next, you isolate the filtrate through gravity filtration. What do you expect the iodate concentration to be in the filtered solution? How would the iodate concentration differ if only a 0.500 g sample of the solid was used? What if the solvent was water instead?

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