What is the n-factor of when it specifically reacts with to form and water? — Redox Reactions and Volumetric Analysis Chemistry Question

💡 Solution & Explanation

The reaction is $H_3PO_4 + 2NaOH \rightarrow Na_2HPO_4 + 2H_2O$. Here, 2 out of the 3 acidic protons of orthophosphoric acid are replaced by $Na^+$. Therefore, the basicity utilized in this specific reaction is 2, making its n-factor = 2.