Your choice (2-naphthol) is

Let's separate the 2-naphthol.

You want to extract 2-naphthol* into the aqueous solution by changing it to a water-soluble salt*.

Which aqueous solution will you add?

dilute aqueous HCl
dilute aqueous NaOH
saturated aqueous NaHCO3

Click ADD to add the selected solution to the separatory funnel