Metal dissolution

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LG2019
Posts: 60
Joined: Fri Sep 28, 2018 12:27 am

Metal dissolution

Postby LG2019 » Wed Mar 13, 2019 11:24 pm

Based on electrochemical properties, how can we tell if a metal will dissolve in solution?

Albert Duong 4C
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Joined: Fri Sep 28, 2018 12:17 am
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Re: Metal dissolution

Postby Albert Duong 4C » Thu Mar 14, 2019 10:04 pm

I think the metal that's oxidized and becomes an ion is the one that dissolves in solution.

LG2019
Posts: 60
Joined: Fri Sep 28, 2018 12:27 am

Re: Metal dissolution

Postby LG2019 » Thu Mar 14, 2019 11:55 pm

Do you know why that is the case?

Emily Burghart 1k
Posts: 50
Joined: Wed Sep 18, 2019 12:17 am

Re: Metal dissolution

Postby Emily Burghart 1k » Mon Feb 17, 2020 3:34 pm

Is there a way of knowing if the metal will be oxidized? Do certain metals oxidize easier than others? Which metals are least likely to oxidize and dissolve into solution?

805303639
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Joined: Thu Jul 11, 2019 12:16 am
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Re: Metal dissolution

Postby 805303639 » Thu Feb 27, 2020 9:12 pm

Emily Burghart 1k wrote:Is there a way of knowing if the metal will be oxidized? Do certain metals oxidize easier than others? Which metals are least likely to oxidize and dissolve into solution?


Refer to the ordered electrochemical series. Metals with half-reactions that appear later in the table (more negative E^0) are more easily oxidized/strongly reducing. Metals at the top of the series (large positive E^0) like Au are least likely to get oxidized.

gabbymaraziti
Posts: 111
Joined: Wed Sep 18, 2019 12:19 am

Re: Metal dissolution

Postby gabbymaraziti » Thu Feb 27, 2020 9:57 pm

I understand how to determine this based on Ecell values, but how would we determine this based off electrochemical properties??

Ruth Glauber 1C
Posts: 100
Joined: Wed Sep 18, 2019 12:20 am

Re: Metal dissolution

Postby Ruth Glauber 1C » Sun Mar 01, 2020 4:58 pm

Does anyone have an example they could use to illustrate this?

Elizabeth Harty 1A
Posts: 125
Joined: Sat Jul 20, 2019 12:16 am

Re: Metal dissolution

Postby Elizabeth Harty 1A » Sun Mar 01, 2020 5:03 pm

Is this material covered on test 2?

Jasmine W 1K
Posts: 49
Joined: Sat Sep 07, 2019 12:18 am

Re: Metal dissolution

Postby Jasmine W 1K » Sun Mar 01, 2020 5:07 pm

The metal that becomes an ion is the one that dissolves in the solution. Also, most reactions would identify it as dissolved by using (aq).

Emily Burghart 1k
Posts: 50
Joined: Wed Sep 18, 2019 12:17 am

Re: Metal dissolution

Postby Emily Burghart 1k » Sun Mar 01, 2020 10:16 pm

805303639 wrote:
Emily Burghart 1k wrote:Is there a way of knowing if the metal will be oxidized? Do certain metals oxidize easier than others? Which metals are least likely to oxidize and dissolve into solution?


Refer to the ordered electrochemical series. Metals with half-reactions that appear later in the table (more negative E^0) are more easily oxidized/strongly reducing. Metals at the top of the series (large positive E^0) like Au are least likely to get oxidized.


Thank you!

Jainam Shah 4I
Posts: 130
Joined: Fri Aug 30, 2019 12:16 am

Re: Metal dissolution

Postby Jainam Shah 4I » Sun Mar 01, 2020 10:55 pm

Usually the metal electrode that is being oxidized is losing mass in terms of the metal and is dissolving into the aqueous solution.


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