We are asked to find the pH of a buffer solution of Dinitrophenol and NaOH,with the necessary data given.

Do they react at 1:1 ratio? What would be the products?

2 answers

Yes, they react 1:1. the phenol group (OH) becomes ONa (as the salt or base) and the H combines with the OH of the NaOH to form water. So the dinitrophenol is the acid and the sodium salt is the base.
Thank you!