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Which are favored at equilibrium?
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Topic: Which are favored at equilibrium? (Read 26182 times)
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hiswifetheirmom
Regular Member
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Which are favored at equilibrium?
«
on:
November 18, 2009, 09:31:04 PM »
Here are my 2 equations. Please tell me whether the reactants or products will be favored at equilibrium. I *think* I know the answers, but I want to double check. Thank you!!
1) HF + OH- ⇌ F- + H2O
2) HCN + OH- ⇌ CN- + H2O
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nj_bartel
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Re: Which are favored at equilibrium?
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Reply #1 on:
November 18, 2009, 11:37:47 PM »
what do you think and why
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orgoclear
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Re: Which are favored at equilibrium?
«
Reply #2 on:
November 19, 2009, 08:31:07 AM »
Remember that side of the reaction is favoured in equilibrium which has weaker acid and weaker base..
On basis of this heres the first one
(1) HF + OH- <-> F- + H2O
HF is stronger acid than H2O
OH- is stronger base than F-
So the equilibrium favours the products side here
Now can you try the second one?
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hiswifetheirmom
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Re: Which are favored at equilibrium?
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Reply #3 on:
November 19, 2009, 09:08:34 AM »
HCN + OH- <---> CN- + H2O
Given the reasoning I would say that in this equation, the
products
would be more favorable because OH- is the stronger base and HCN is the stronger acid. Am I right??
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orgoclear
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Re: Which are favored at equilibrium?
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Reply #4 on:
November 19, 2009, 09:11:52 AM »
Yes
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hiswifetheirmom
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Re: Which are favored at equilibrium?
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Reply #5 on:
November 19, 2009, 09:13:53 AM »
Yay!! Thanks so much for your help. I feel like I truly understand now. I appreciate it.
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Which are favored at equilibrium?