gabe Posted November 16, 2011 Report Share Posted November 16, 2011 Hi guys, just wondering, I'm doing this same IA and I have to show that water is the excess reagent by showing that the number of moles of water is higher than the no. of moles of Copper sulphate.How do i do this if i cannot calculate the Mr of H2O because there is no coefficient? Reply Link to post Share on other sites More sharing options...
Keel Posted November 16, 2011 Report Share Posted November 16, 2011 (edited) Hi guys, just wondering, I'm doing this same IA and I have to show that water is the excess reagent by showing that the number of moles of water is higher than the no. of moles of Copper sulphate.How do i do this if i cannot calculate the Mr of H2O because there is no coefficient?There is no need to know the number of moles of water because you are only interested in the enthaply change. You assume (and make sure by choosing a sensible volume of water) that the reaction goes to completion.http://www.ibsurviva...opper-sulphate/ Edited November 16, 2011 by Keel Reply Link to post Share on other sites More sharing options...
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