Homework Help: Chemistry

Posted by Allie on Monday, February 6, 2012 at 4:54am.

For a 5.0 g sample of CoCl3·9H2O, what weight of water (in grams) will be lost if the sample is heated to constant weight (all water driven off)?

Chemistry - DrBob222, Monday, February 6, 2012 at 2:32pm
Here is a worked example of a stoichiometry problem. Just follow the steps.
http://www.jiskha.com/science/chemistry/stoichiometry.html

There is an easier way to do it. Calculate the percent water in CoCl3.9H2O, then (%H2O/100)*5.00 g = mass H2O lost.

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