if you mean why is it when [H+] = [A-] related to the Ka of a weak acid. look at the definition of Ka. Ka = [H+][A-]/[HA]
For a weak acid, the value of Ka gives one an indication of the degree to which that weak acid will dissociate. This then gives one an idea of the acidity of that weak acid, and it can be easily compared to other weak acids.
A weakly acidic solution.
HCN(aq) ==> H^+(aq) + CN^-(aq)Ka = [H+][CN-]/[HCN] and the value can be looked up in a book or on line.
the strongest mineral is the diamond, actually the strongest mineral is the quartz and the strongest rock is diamond
1
7.2e-4
ka= 1.62 x 10^-12
James Madison was the strongest supporter of popular sovereignty as a political value. He was also the father of the Constitution.
5.6x10^-10
NaOH does not have a Ka because it is not an acid. Ka is the concentration of the acid, therefore non valid. It can have a Kb though. Hope this helps
if you mean why is it when [H+] = [A-] related to the Ka of a weak acid. look at the definition of Ka. Ka = [H+][A-]/[HA]
The Pound Sterling has the most value.
1 x 109
H3O+ (hydronium ion) is NOT the strongest acid: actually all -what we normally call- 'strong' acids (like HCl, HI, HNO3 etc. with Ka>>1.0) are stronger than H3O+ (Ka=1.0)E.g.:HCl + H2O => H3O++ Cl- of which Ka = [H3O+].[Cl-] / [HCl] >>1, telling us this reaction is 'completed' to the right (>>) side, thus H3O+ does not donate its prtons 'backward' to form HCl.
Thomas Jefferson
HNO3