Question

question 16 (4 points) which one of the following is true in an acidic solution? a) h3o+ > oh- b) h3o+ = oh- c) h3o+ < oh- d) h3o+ = 0m

Explanation:

In an acidic solution, the concentration of hydronium ions ($\ce{H3O+}$) is greater than the concentration of hydroxide ions ($\ce{OH-}$). In a neutral solution, $[\ce{H3O+}] = [\ce{OH-}]$, and in a basic solution, $[\ce{H3O+}] < [\ce{OH-}]$. Option d is incorrect as aqueous solutions always have some $\ce{H3O+}$ and $\ce{OH-}$ from autoionization of water. So for an acidic solution, $[\ce{H3O+}] > [\ce{OH-}]$.

Answer:

a) $[\ce{H3O+}] > [\ce{OH-}]$