Laboratory #8 The Sequence of Chemical Reactions Drew Selfridge Dave Allen, Lab partner Instructor Yang February 11, 1997 INTRODUCTION This experiment was to recover the most amount of copper after it is subjected to a sequence of reactions. The copper is originally in solid form, but the reactions will turn it into free Cu+2 ions floating in solution. The ions will then be regrouped to form solid copper once again. During this process, however, some of the Cu+2 …showed first 75 words of 605 total…

…showed last 75 words of 605 total…copper could be recovered there for our results were also accurate to 4.39%.         (c) The hypothesis was supported by the experimental results because two groups recovered 100%. (d) Our results were less then the class average. This explained by possilbe loss of copper when transferring between different stages of the experiment. (e) Buring of the copper during the drying stage would be a systematic error that would result in a class average greater than 100% yield of copper.