Question

The strength of an acid depends on the concentration of the hydronium ions ________ present in a solution.

• A. $H^{+}$
• B. $H_3{O}^{+}$
• C. $O{H}^{-}$
• D. All of the above

Answer 1

Answer: (B)

$H_3{O}^{+}$

$HCl+H_{2}O⟶H_3{O}^{+}+C{l}^{-}$

$\to$ Strength at acid depends on extent of dissociation

$\to$ Extent of dissociation depends on product's concentration.

Thus, $\left[H_3{O}^{+}\right]$ is dependent on strength of the acid and vice-versa.