|
Title: Why does the Ka value change for polyprotic acids? Post by: mickey16 on Nov 18, 2012 I was wondering how and why the value for Ka of the first hydronium ion in a polyprotic acid differs from the Ka value of the second, and so on.
Wikipedia is erroneous in this respect! Please only give an answer if you are sure :) Title: Why does the Ka value change for polyprotic acids? Post by: smokin7acehole on Nov 18, 2012 to understand this you have to relate ka or pka to stability. the stronger acid has a more stable conjugate base. as the acid gives up more H+'s, it becomes more -. putting all that negative charge means it becomes less stable.
|