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Chemistry 7 Online
OpenStudy (fifib):

Can someone help me with this question??

OpenStudy (fifib):

Which of the following chemical reactions is most likely to have the largest equilibrium constant K? A. H3PO4(aq) + NH3(aq) = H2PO4-(aq) + NH4+(aq) B. CH3COO-(aq) + H2O(l) = CH3COOH(aq) + OH-(aq) C. CH3COOH(aq) + H2O(l) = CH3COO-(aq) + H3O+(aq) D. HCl(aq) + H2O (l)= H3O+(aq) + Cl-(aq)

OpenStudy (aaronq):

These are acid-base reactions. You should approach multiple choice questions with an elimination process. Can you indicate which of the reactants are strong acids?

OpenStudy (photon336):

Translation which reaction would favor the products the most?

OpenStudy (fifib):

I have no idea how to even do this. Let alone eliminate the answers i think are wrong @Photon336 @aaronq Sorry I had to some things to do

OpenStudy (photon336):

What this is actually asking is what is the strongest acid. the strongest acid is going to dissociate the most. meaning HA --> H+ A- there is going to be virtually no acid HA left and almost all H+ A- \[k = \frac{ [HA][A^-] }{ [HA] } = \frac{ PRODUCTS }{ REACTANTS }\]

OpenStudy (photon336):

This means that the stronger acid is going to have a larger k value. HCL is the only acid that meets that criteria because we know that HCL--> H+ CL- CL is happy existing as an ion so it's negative charge is going to be stable so it likes existing as an ion.

OpenStudy (fifib):

That's the only thing I knew, HCl is a very strong acid . Thankyou for the explanation. I do not understand why HA was written twice, on the numerator and denominator

OpenStudy (photon336):

Fifib that's a mistake

OpenStudy (fifib):

@Photon336 Oh

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