# When dissolved in water, what does acids produce?

Dec 14, 2016

By definition, acids produce hydronium ions............

#### Explanation:

Get an acid, any acid, and when dissolved in water the following equilibrium reaction occurs:

$H A \left(a q\right) + {H}_{2} O \left(l\right) r i g h t \le f t h a r p \infty n s {H}_{3} {O}^{+} + {A}^{-} \left(a q\right)$

The STRONGER the acid, the FARTHER to the right the given equilibrium operates.

And, ${K}_{a}$, $\text{the acid dissociation constant}$ operates:

${K}_{a} = \frac{\left[{H}_{3} {O}^{+}\right] \left[{A}^{-}\right]}{\left[H A\right]}$

Clearly, the stronger the acid, and the higher the value of ${K}_{a}$, the farther to the right the given equilibrium operates.

Strong acids, ${H}_{2} S {O}_{4}$, $H X \left(X = C l , B r , I\right) , H N {O}_{3} , H C l {O}_{4}$ give equilibria that are strongly to the right. Capisce?