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Unformatted text preview: 4 x 6H 2 O. The moles of the experimental value was precisely 5.5 moles of H 2 O after dividing the moles of water by the moles of copper (II) sulfate the ration was 1:6 while the theoretical value was 5 moles of H 2 O because the empirical formula of the anhydrate copper (II) sulfate should have been CuSO4 x 5 H 2 O, a ratio of 1:5. with these values the percent error was found to be 10 percent. A source of error could have come from the heating of the crucible. Accurate heating of the crucible could have caused error, if more time and trials when heating the crucible had been taken then the percent error may have decreased...
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- Spring '12
- AP Chemistry