Intro
In Lab #5 five we will be exploring the cycle of copper through many chemical reactions. What we are going to do is take a piece of copper metal put it through a series of reactions that change it¡¦s state of matter and chemical formula, but in the end, we will return it to it¡¦s normal solid state. The idea of this lab is to try to recover as close to 100% of the copper we started with. Theoretically, this is possible, but for inexperienced college students, retrieving 100% of the copper metal is near impossible. There are five reactions that the copper will go through.
1. 3Cu(s) + 8HNO3(aq) + O2 ³ 3Cu(NO3)2(aq) + 4H2O(aq) + 2NO2(aq)
2. 3Cu(NO3)2(aq) + 2NaOH(aq) ³ Cu(OH)2(s) + 2NaNO3(aq)
3. Cu(OH)2(s) ³ CuO(s) + H2O(aq)
4. CuO(s) + H2SO4(aq) ³ CuSO4(aq) +H2O(aq)
5. CuSO4(aq) + Zn(s) ³ ZnSO4 + Cu(s)
At the end of reaction number five we should have close to 100% of the copper we started out with.
Meth
Obtain as close to .5g of copper wire,......
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