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November 01, 2025, 12:26:01 pm
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Author Topic: Text Book Question Help  (Read 579 times)  Share 

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Galvanic Cell

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Text Book Question Help
« on: October 16, 2010, 10:29:39 pm »
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Could someone please explain to me why you could store 1.0 M Fe2(SO4)3 solution in a container made of Ni metal safely?
Thanks :)
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Studyinghard

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Re: Text Book Question Help
« Reply #1 on: October 16, 2010, 10:53:38 pm »
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The Fe ions wont react with Ni metal because its not a spontaneous reaction.
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Galvanic Cell

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Re: Text Book Question Help
« Reply #2 on: October 16, 2010, 11:05:43 pm »
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But Fe3+ has a greater Eo value so shouldnt it be spontaneous?
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Studyinghard

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Re: Text Book Question Help
« Reply #3 on: October 16, 2010, 11:24:24 pm »
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oh right, my bad. looked like Fe2+ at a quick glance. I have no idea now :P
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sajib_mostofa

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Re: Text Book Question Help
« Reply #4 on: October 16, 2010, 11:37:17 pm »
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Maybe the rate of reaction is too slow? After all, the electrochemical series doesn't tell us that info...
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chansthename

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Re: Text Book Question Help
« Reply #5 on: October 18, 2010, 04:39:37 pm »
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Quote from: sajib_mostofa on October 16, 2010, 11:37:17 pm
Maybe the rate of reaction is too slow? After all, the electrochemical series doesn't tell us that info...

even if it is slow it would still not be a good idea because we are storing it (eventually it would not be 1.0M anymore making it useless)

perhaps a mistake by the exam writer (they may have meant fe2+)
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