2013 Final Q4 Part A

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2013 Final Q4 Part A

Postby Raymond_Guan_1H » Thu Mar 16, 2017 10:09 pm

How do I get n=4 for part A in question 3? I thought it was the amount of electrons, but I can't seem to get 4.

Simone Seliger 1C
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Re: 2013 Final Q4 Part A

Postby Simone Seliger 1C » Thu Mar 16, 2017 11:37 pm

I am having the same problem :(

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Re: 2013 Final Q4 Part A

Postby Michelle_Tan_1G » Fri Mar 17, 2017 10:36 pm

You look at the chemical equation and see that Fe (neutral charge) changes to 2Fe(OH)2 in the products, indicating Fe has a positive +2 charge. 2 e- are transferred, but there are 2 moles of Fe, so a total of 4 e- transferred, n=4.

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