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Topic: Re: 2nd problem IChO  (Read 3252 times)

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Offline momoho

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Re: 2nd problem IChO
« on: April 07, 2014, 08:09:58 AM »
I have a problem with the first part.
What is the reaction between Li and H2SO4?
Is it important to be in concentrated or dilute solution?
What is the difference between being concentrated or dilute?

Offline Arkcon

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Re: 2nd problem IChO
« Reply #1 on: April 09, 2014, 07:14:58 AM »
mobinhosseini:  I've split this question off from an older tread, and moved it here.  Maybe you'll get a better response if you write the whole question.
Hey, I'm not judging.  I just like to shoot straight.  I'm a man of science.

Offline momoho

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Re: 2nd problem IChO
« Reply #2 on: April 10, 2014, 05:57:22 AM »
mobinhosseini:  I've split this question off from an older tread, and moved it here.  Maybe you'll get a better response if you write the whole question.
What are the products of reactions below?
Li + H2SO4(conc) = ???
Li + H2SO4(dilute) = ???

Offline Rutherford

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Re: 2nd problem IChO
« Reply #3 on: April 13, 2014, 11:07:59 AM »
I can't give you a direct answer because of forum policy.
Li is reactive enough to be oxidized by water only (i.e. H+).
In the concentrated solution, there is a significant amount of sulphate ions which in acidic solutions are good oxidizers.
Now you try to write the products.

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