Anode and Xathod
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Re: Anode and Xathod
The anode is where the oxidation reaction while the cathode is where the reduction reaction occurs. Convention dictates that the anode is on the right in a cell diagram and that the cathode is on the left.
Re: Anode and Xathod
on the left side, oxidation is taking place at the anode- so the rod itself is giving off electrons which then travel to the right side, the cathode to binds with free floating molecules waiting to be reduced.
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Re: Anode and Xathod
The anode is where the oxidation reaction takes place. The cathode is where the reduction reaction takes place. Typically, in cell diagrams, the anode is written on the left and the cathode is written on the right. An(ode)Ox(idation)Red(duction)Cat(ode) is an helpful tool to remember.
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Re: Anode and Xathod
It may also be important to know that, for a concentration cell, the side with the lower concentration is the anode. This makes sense because, for the anode, the metal will be oxidized to enter solution as aqueous ions, increasing the concentration. The opposite will occur for the cathode and this will help equalize the concentrations.
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Re: Anode and Xathod
Another difference to note is that usually the anode will decrease in solid mass while the cathode will increase in solid mass. This is because at the anode, solid metal atoms are oxidized into their aqueous ion form. At the cathode, ions are reduced into their solid metal form. Thus, you would observe metal flakes gathering at the cathode.
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Re: Anode and Xathod
the anode of the system is where oxidation occurs and the cathode is where reduction occurs
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