Quick question about equilibrium of a reaction

In summary, adding more H2O to an equilibrium involving CoCl4-2(alcoholic) and H2O will not cause any changes since the concentration of water cannot be significantly altered. This is related to Le Chatelier's principle, but since water is a reactant in this equation, its concentration can still affect the equilibrium. However, since the reaction is performed in an alcoholic solution, the concentration of water is already controlled and adding more water will not have a significant effect.
  • #1
mjolnir80
55
0

Homework Statement


we have a solution of
Cocl[tex]^{}2-_{}4[/tex](alcohol) + 6H[tex]_{}2[/tex]O(l) <---> Co(H[tex]_{}2+[/tex]O)[tex]_{}6^{}2+[/tex](aq) + 4Cl-(aq)
at equilibrium
what would happen if we were to add more H2O?

The Attempt at a Solution


we can't really change the concentration of the water so nothing would happen?

edit: sorry abot the bad reaction formula
 
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  • #2
this is an equilibrium, what happens when one side of the equilibrium is disturbed? what chemical principle is this related to?
 
  • #3
its related to le chatelires principle but I am not sure whether the water has any effect at all because we can't really change the concentration of the water
 
  • #4
any reactant or solvent in a chemical reaction has a concentration, even water. So what will the equilibrium do if more water is added?
 
Last edited:
  • #5
It is hard to tell from your reaction, but isn't it done in alcohol, in which case water concentration can be easily controlled?
 
  • #6
likely the CoCl2 4- was prepared with an alcohol content in its solution to maintain this species and not revert to the water product.


mjolnir80 said:

Homework Statement


we have a solution of
Cocl[tex]^{}2-_{}4[/tex](alcohol) + 6H[tex]_{}2[/tex]O(l) <---> Co(H[tex]_{}2+[/tex]O)[tex]_{}6^{}2+[/tex](aq) + 4Cl-(aq)
at equilibrium
what would happen if we were to add more H2O?

water is a reactant here.
 
  • #7
mjolnir80 said:

Homework Statement


we have a solution of
CoCl2-4(alcohol) + 6H2O(l) <---> Co(H2O)6+2(aq) + 4Cl-(aq)
at equilibrium
what would happen if we were to add more H2O?

Here is a cleaned up version of your equation. Hit 'quote' to see how I did it.

I think it should be:

CoCl4-2(alcoholic) + 6H2O(l) <---> Co(H2O)6+2(aq) + 4Cl-(alcoholic)
 
Last edited:

What is equilibrium of a reaction?

Equilibrium of a reaction refers to the state where the rate of the forward reaction is equal to the rate of the reverse reaction. This means that the concentrations of reactants and products remain constant over time.

How is equilibrium affected by changes in concentration?

According to Le Chatelier's principle, if the concentration of a reactant is increased, the equilibrium will shift towards the products to counteract the change. Similarly, if the concentration of a product is increased, the equilibrium will shift towards the reactants.

What is the role of temperature in equilibrium?

Changes in temperature can also affect the equilibrium of a reaction. An increase in temperature will favor the endothermic direction of the reaction, while a decrease in temperature will favor the exothermic direction. This can shift the equilibrium to either the products or reactants, depending on the nature of the reaction.

Can equilibrium be influenced by pressure?

Yes, for reactions involving gases, changes in pressure can affect the equilibrium. An increase in pressure will favor the direction with fewer moles of gas, while a decrease in pressure will favor the direction with more moles of gas.

How does a catalyst affect equilibrium?

A catalyst does not affect the position of equilibrium, but it can increase the rate at which equilibrium is reached by providing an alternative pathway for the reaction to occur. This allows the system to reach equilibrium more quickly, but the concentrations of reactants and products at equilibrium will remain the same.

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