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Topic: Acid and base  (Read 9137 times)

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21901201

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Acid and base
« on: March 31, 2006, 12:17:56 PM »
Na2CO3 + H2SO4 --> ¨

How do I solve this one?

Offline Albert

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Re:Acid and base
« Reply #1 on: March 31, 2006, 12:26:49 PM »
 :o

A base and an acid...no need to balance anything...what do you think?

Offline Alberto_Kravina

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Re:Acid and base
« Reply #2 on: March 31, 2006, 12:29:24 PM »
But a reaction happens, by the way... :P

21901201

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Re:Acid and base
« Reply #3 on: March 31, 2006, 12:33:45 PM »
I was thinking something like this:

2 Na(+) + CO3(2--) + 2 H30(+) + SO4(2--) --> H2O + H2 + Na2SO4 (aq) + CO3(2--)


That can't be right, oi?

Offline Alberto_Kravina

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Re:Acid and base
« Reply #4 on: March 31, 2006, 12:39:07 PM »
I was thinking something like this:
2 Na(+) + CO3(2--) + 2 H30(+) + SO4(2--) --> H2O + H2 + Na2SO4 (aq) + CO3(2--)

Too complicated (and not correct)! What could happen with the carbonate anion if you protonate it?

21901201

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Re:Acid and base
« Reply #5 on: March 31, 2006, 12:48:12 PM »
I thought so.

Something like this?
2 H+ + CO3--  -->  H2CO3

But that's an acid too, right?

Offline Alberto_Kravina

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Re:Acid and base
« Reply #6 on: March 31, 2006, 12:59:19 PM »
Correct, but H2CO3 is instable... :P

Captain Proton

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Re:Acid and base
« Reply #7 on: April 01, 2006, 08:36:18 PM »
Wouldn't the H2SO3 decompose into CO2 and H2O?

Na2CO3 + H2SO4  --->  H2CO3 + Na2SO3  --->  H2O + CO2 + Na2SO3
« Last Edit: April 01, 2006, 08:51:45 PM by Captain Proton »

Offline Alberto_Kravina

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Re:Acid and base
« Reply #8 on: April 02, 2006, 07:49:35 AM »
Wouldn't the H2SO3 decompose into CO2 and H2O?
H2CO3 decomposes in water and carbon dioxide, not H2SO3 :)

Quote
Na2CO3 + H2SO4  --->  H2CO3 + Na2SO3  --->  H2O + CO2 + Na2SO3
No! Sulfate is not reduced to sulfite! As you can see the oxygen atoms are not balanced.... :P
« Last Edit: April 02, 2006, 07:50:12 AM by Alberto_Kravina »

Offline Bel-p

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Re:Acid and base
« Reply #9 on: April 02, 2006, 06:56:53 PM »
Na2CO3 + H2SO4 --> ¨

How do I solve this one?

Is is too simple to suggest the following?
Na2CO3 + H2SO4 --> Na2SO4 + CO2 +H2O
a carbonate + an acid makes a salt + CO2 and water

Offline xiankai

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Re:Acid and base
« Reply #10 on: April 03, 2006, 07:07:19 AM »
that would be ok, but we dont know what the author of this thread is trying to find: an ionic equation, a general equation or all the reactions that occur step-by-step :P
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