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Metal dissolution

Posted: Wed Mar 13, 2019 11:24 pm
by LG2019
Based on electrochemical properties, how can we tell if a metal will dissolve in solution?

Re: Metal dissolution

Posted: Thu Mar 14, 2019 10:04 pm
by Albert Duong 4C
I think the metal that's oxidized and becomes an ion is the one that dissolves in solution.

Re: Metal dissolution

Posted: Thu Mar 14, 2019 11:55 pm
by LG2019
Do you know why that is the case?

Re: Metal dissolution

Posted: Mon Feb 17, 2020 3:34 pm
by Emily Burghart 1k
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?

Re: Metal dissolution

Posted: Thu Feb 27, 2020 9:12 pm
by 805303639
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.

Re: Metal dissolution

Posted: Thu Feb 27, 2020 9:57 pm
by gabbymaraziti
I understand how to determine this based on Ecell values, but how would we determine this based off electrochemical properties??

Re: Metal dissolution

Posted: Sun Mar 01, 2020 4:58 pm
by Ruth Glauber 1C
Does anyone have an example they could use to illustrate this?

Re: Metal dissolution

Posted: Sun Mar 01, 2020 5:03 pm
by Elizabeth Harty 1A
Is this material covered on test 2?

Re: Metal dissolution

Posted: Sun Mar 01, 2020 5:07 pm
by Jasmine W 1K
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).

Re: Metal dissolution

Posted: Sun Mar 01, 2020 10:16 pm
by Emily Burghart 1k
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!

Re: Metal dissolution

Posted: Sun Mar 01, 2020 10:55 pm
by Jainam Shah 4I
Usually the metal electrode that is being oxidized is losing mass in terms of the metal and is dissolving into the aqueous solution.