#AK_MCAT_v2::#UWorld::402713
The overall reaction for the electrolysis of molten sodium chloride, Mathjax can be expressed as two separate, simultaneous redox processes (Reactions 1 and 2):
Reaction 1: Mathjax
Reaction 2: Mathjax
Given that the reduction of 2 moles of NaCl(l) requires 2 moles of electrons (a 1:1 ratio), what is the amount of electric charge required to produce 0.80 mol of Na(l) during the electrolysis? 0.8 faradays (55%)
An electrolytic cell can be conceptualized as a galvanic (voltaic) cell that is operating in reverse. In an electrolytic cell, electric current from an external source (such as a battery) is supplied to drive a nonspontaneous, endergonic chemical reaction (ΔG > 0). The operation of an electrolytic cell causes electrolysis, which is the electrochemical decomposition of a compound.
During electrolysis, electron-rich species (such as anions) are oxidized at the electron-deficient anode. For example, in the electrolysis of molten NaCl, Cl− is oxidized to Cl2 gas (Rea
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