Question

In: Chemistry

What are the pKA s of HCN, hydrocyanic acid, and HF,hydrofluoric acid? Based solely on...

What are the pKA s of HCN, hydrocyanic acid, and HF, hydrofluoric acid? Based solely on the pKA values, what would you expect the products of the reaction below to be? Briefly explain.

HCN + HF -->  ?

Solutions

Expert Solution

pKa of HF = 3.1

pKa of HCN = 9.2

As pKa value show that HCN is weak acid as compared to HF so H+ will be released by HF

HCN(aq) + HF(aq) = H+(aq) + F-(aq) + HCN(aq)

HCN will not present in dissociate form or present in very small amount


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