Computing Produce
4 July 2010
Computing Produce
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How can i produce hydated copper (II) sulfate from water and anhydrous copper(II) sulfate?
I plan to conduct a demonstration lesson on stoichiometry using copper (II) sulfate which i plan to hydrate. Is it as simple as computing for the mass of the anhydrous and adding the mass of 5 moles of water?
In principle, yes. However, you may have some trouble getting it to mix properly.
It's easier to do it the other way - weigh out some copper sulfate pentahydrate, then heat it until it's all dull green. Measure the dried sample. The difference should be 5 moles of water (or close - may not drive all of it away).
Leave it out on the counter, especially near a good humidity source like hot steamy water. The stuff should be blue a little while later.
