The latest magnitude of your own balance constant to own an enthusiastic ionization impulse can be be used to influence brand new relative characteristics out of acids and you may angles. For example, all round picture on the ionization regarding a weak want Niche dating site acid for the drinking water, where HA is the mother or father acidic and you may A good? was the conjugate base, is just as comes after:

As we noted earlier, the concentration of water is essentially constant for all reactions in aqueous solution, so \([H_2O]\) in Equation \(\ref<16.5.2>\) can be incorporated into a new quantity, the acid ionization constant (\(K_a\)), also called the acid dissociation constant:

There is an easy relationship within magnitude of \(K_a\) for an acidic and you can \(K_b\) for the conjugate foot

Thus the numerical values of K and \(K_a\) differ by the concentration of water (55.3 M). Again, for simplicity, \(H_3O^+\) can be written as \(H^+\) in Equation \(\ref<16.5.3>\). Keep in mind, though, that free \(H^+\) does not exist in aqueous solutions and that a proton is transferred to \(H_2O\) in all acid ionization reactions to form hydronium ions, \(H_3O^+\). The larger the \(K_a\), the stronger the acid and the higher the \(H^+\) concentration at equilibrium. Читать далее →