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Dilute acids in reactions
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Topic: Dilute acids in reactions (Read 1567 times)
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rahulmutt
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Dilute acids in reactions
«
on:
November 11, 2012, 09:43:08 PM »
Consider the following reaction:
Mg + 2HCl
MgCl
2
+ H
2
Fe + H
2
SO
4
FeSO
4
+ H
2
In both cases, dilute acid is used. What happens to the above reactions when you concentrate the acids? Moreover, can something be said in general about the difference between dilute vs concentrated strong acids used as regents in inorganic/organic reactions?
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Hunter2
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Re: Dilute acids in reactions
«
Reply #1 on:
November 12, 2012, 01:11:34 AM »
The reaction gets stronger. Probably an oxidizing effect can be obtained. Sulfuric would be reduced to SO
2
.
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Borek
Mr. pH
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Re: Dilute acids in reactions
«
Reply #2 on:
November 12, 2012, 04:07:26 AM »
Sometimes it won't be that easy. In diluted nitric acid iron will react as expected, but in the concentrated nitric acid it will get passivated and stop to react. So you should be careful about generalizations.
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ChemBuddy
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Dilute acids in reactions