A student adds 50.0cm^3 of 0.250 mol dm^-3 butanoic acid to 50.0cm^3 of 0.0500 mol dm^-3 sodium hydroxide. A buffer solution forms.
i) Explain why a buffer solution forms
ii) Calculate the pH of the buffer solution.
The Ka of butanoic acid is 1.51 x a0^-5 mold dm^-3
Our teacher didnt teach us this method on making a buffer only the other one by adding a weak acid to its conjugate base