what is the formula of the hdrated salt?
2006-09-17 21:13:56 · 2 answers · asked by cute-goddess 5 in Education & Reference ➔ Homework Help
You may want to work it out yourself,
consider that CuSO4 makes up 5.1/8 x 100 or 63.75% by weight of the original hydrated salt, so the water molecules make up 36.25% by weight.
You can look up the periodic tables for the atomic weights of all the elements in the CuSO4.xH2O formula.
In essence, if the water of crystalization is 1, i.e. CuSO4.H2O, the anhydrous salt is expected to be about 82.86%, so obviously 1H2O isn't the answer, by increasing the number of H2O you should be able to get closer to the determined percentage and hence obtain your answer. Ofcourse there is a mathematical shortcut, but I will let you discover that for yourself, if not the brute force method of trying 1H2O, 2H2O and so on will get you there.
2006-09-19 00:29:12 · answer #1 · answered by unstable 3 · 0⤊ 0⤋
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2016-11-27 21:29:41 · answer #2 · answered by ? 4 · 0⤊ 0⤋