/sci/ - Science & Math

>>9061996
Is this correct?

thermodynamically favorable reactions (pH=0):
O2 has the capability of forcing Cu to become Cu2+
O2 has the potential to oxidise Cu to Cu2+
Cu can reduce O2 to H2O
Cu2+ has the capability of forcing H2 to become H2O
Cu2+ has the potential to oxidise H2 to H2O
H2 can reduce Cu2+ to Cu

electrodes and batteries (pH=0):
An electrolytic precipitation of copper can be carried out, applying a potential lower than the equilibrium of the Cu2 + / Cu (<0.33) line. The cupric oxide can be reduced in the form of Cu2+ + 2e = Cu (cathode)

>>9059066
A) done, teacher said that center top can be CuO or Cu (OH) 2 (just choose one, CuO). We eliminate unstable species and others... total 8 equilibrium (boundary line), at 10 ^ -3 (pic from wiki)