Le Chatelier's principle and sulfuric acid
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For the following reaction HSO4-(aq) + H2O <-> H3O+(aq) + SO42-
A.) How will the equilibrium change when Na2SO4 is added?
B.) How will the equilibrium change when NaHSO4 is added?
C.) Is this reaction endothermic or exothermic?
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Solution Summary
How is the reaction of sulfuric acid affected by addition of salts or heat?
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Some good background material for La Chatelier's Principle is at this url: http://en.wikipedia.org/wiki/Henry_Louis_Le_Chatelier . At equilibrium the
rate of reactions is the same in both directions. When you add reagents
the concentration of reactants for one side of the reaction may increase.
That half of the reaction will also increase driving the reaction.
For this particular reaction the following things are important.
HSO4-(aq) + H2O(I) <-> H3O+(aq) + SO42-
A.) If you add NaSO4 to the reaction it will dissociate in this reaction
Na2SO4 -> 2Na+ + SO42-
It is a neutral salt (see http://en.wikipedia.org/wiki/Sodium_sulfate for
properties of Sodium sulfate.
If SO42- is added to your equilibrium then the concentration of reactants
on the ...
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