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Evaporating water from hydrate compounds

7hor
in Homework Help

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Sorry if this has been asked before, we've got a lab tomorrow, we have to take some different hydrate compounds and heat them up with a bunsen burner. We are supposed to figure out a way to know if all the water has been driven off, I just can't think of anything...besides until the compounds start burning, and that isn't good :P Is there a trick with temperature? I'm very puzzled :confused: Thanks in advanced for some hints :)

 

Edit: So I've thought up heating it slowly, and by looking around on the net, keep weighing it till it stays at that constant weight...I think that's it. Might be a better way though. :confused:

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