Acid HA has a pKa=20 and HB has a pKa=10.which is stronger acid?will an acid base reaction with an equilibrium to the right take pplace if Na+A- is added to HB? Explain your answer

Question

Arun · Answer

Dear Kajal

I know that the lower pKa is a stronger acid, which makes answer HB.

Hence HB is stronger acid.

What secind part really asks if it this reaction will happen:

HB + A- = B- + HA

and to find the answer you have to know which conjugate base - A- or B- is stronger.

HB + A- = B- + HA strong acid + A- = B- + weak acid Since HB is a stronger acid, isn't A- a stronger base? stronger acid=weaker conj. base?

Hence answer will be yes.

Regards

Arun (askIITians forum expert)

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Acid HA has a pKa=20 and HB has a pKa=10.which is stronger acid?will an acid base reaction with an equilibrium to the right take pplace if Na+A- is added to HB? Explain your answer

Acid HA has a pKa=20 and HB has a pKa=10.which is stronger acid?will an acid base reaction with an equilibrium to the right take pplace if Na+A- is added to HB? Explain your answer

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Acid HA has a pKa=20 and HB has a pKa=10.which is stronger acid?will an acid base reaction with an equilibrium to the right take pplace if Na+A- is added to HB? Explain your answer

Acid HA has a pKa=20 and HB has a pKa=10.which is stronger acid?will an acid base reaction with an equilibrium to the right take pplace if Na+A- is added to HB? Explain your answer

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