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VCE Stuff => VCE Science => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Chemistry => Topic started by: you0006 on September 20, 2011, 06:42:12 pm

Title: In a galvanic cell
Post by: you0006 on September 20, 2011, 06:42:12 pm

If there are 4 reactions happening at the same time

how do you know which one is at the cathode and at the anode by using the electro chem series?

Title: Re: In a galvanic cell
Post by: Greatness on September 20, 2011, 06:52:05 pm

The strongest oxidant and strongest reductants will react with each other, then you can see which is oxidation and reduction. THen which is cathode and anode :)

Title: Re: In a galvanic cell
Post by: b^3 on September 20, 2011, 06:53:03 pm

The stongest oxidants and reductants will react first/preferibly (i.e. the highest on the left and lowest on the right). After they have all been used up the next stongest oxidant and reductants will react next and so on. Cathode will be the one undergoing reduction and the anode undergoing oxidation.

EDIIT: beaten. (34 seconds this time.)

Title: Re: In a galvanic cell
Post by: you0006 on September 20, 2011, 07:22:46 pm

thanx guys!!! much luv <3