Question

How do you write a net ionic equation for the reaction that occurs when aqueous solutions of sodium hydroxide and hydrofluoric acid are combined?

Answer 1

`HF(aq) + HO^(-) rarr F^(-) + H_2O(l)`

Explanation:

Unlike the other hydrogen halides, `HF` is a reasonably poor acid. You should check its `pK_a`, but it is a fact that solution of `NaF` give a basic solution. Hydroxide would deprotonate `HF` quantitatively.