Posted by Patti on Tuesday, September 14, 2010 at 1:50pm.
Do you mean how do you KNOW the number of moles H2O in a hydrate or how do you determine the number of moles from experimental data?
For #1, experience.
For #2, calculate number moles of the salt. Calculate number of moles H2O from the experiment. Then find the moles H2O/1mole salt.
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