Beregn Ecelle∘E^\circ_{celle}Ecelle∘ for en Daniell-celle: Zn∣Zn2+∣∣Cu2+∣Cu\text{Zn}|\text{Zn}^{2+}||\text{Cu}^{2+}|\text{Cu}Zn∣Zn2+∣∣Cu2+∣Cu (ECu∘=+0,34E^\circ_{Cu}=+0{,}34ECu∘=+0,34, EZn∘=−0,76E^\circ_{Zn}=-0{,}76EZn∘=−0,76 V).
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Ecelle∘=Ekatode∘−Eanode∘=0,34−(−0,76)=1,10 VE^\circ_{celle}=E^\circ_{katode}-E^\circ_{anode}=0{,}34-(-0{,}76)=1{,}10\,\text{V}Ecelle∘=Ekatode∘−Eanode∘=0,34−(−0,76)=1,10V. Kobber reduseres (katode), sink oksideres (anode).
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