Was the amount of electric energy produced in your galvanic cell consistent with
ID: 920533 • Letter: W
Question
Was the amount of electric energy produced in your galvanic cell consistent with the standard cell potential of the reaction (as calculated in Data Table 3). Hypothesize why it was or was not consistent.
Table 1. Standard Reduction Potentials. E (Volts) +2.87 +1.36 +1.07 +0.80 +0.77 +0.34 0.00 0.44 0.76 1.66 2.37 2.87 2.93 Half-Reaction F(g) + 2e 2F-(aq) Cl,(g) + 2e. 2Cl-(aq) Ag+(aq) + e Ag(s) e'"(aq) + e Fe2+(aq) Cu2+(aq) + 2e Cu(s) 2H+(aq) + 2e H,(g) Fe"(aq) + 2e- Fe(s) Zn2+(aq) + 2e- Zn(s AP"(aq) + 3e Al(s) Mg2+(aq) + 2e- Mg(s) Ca2+(aq) + 2e Ca(s) K'(aq) + e K(s)Explanation / Answer
No it is not, since Cu+2 and 2e-. --> Cu(s) have a theoretical vlaue of E = 0.34
the green table has 0.13 which is not correct.
therefore
E°cell theoretical = 0.76-0.34 = 0.42 V
E°cell real = 0.76 + 0.13 = 0.89 V
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