A buffer is made by preparing a 1.00 L solution that contains 0.15 mol in formic acid (HCOOH) and 0.20 mol in sodium formate (HCOONa). The Ka of formic acid is 1.8x10-4 . (a) Determine the pH of the buffer (b) What is the pH of the buffer after the addition of 0.05 mol of NaOH

What changes occur in the reaction indicated by the equation? check all that apply. the hydrogen nucleus loses protons. the oxygen nucleus gains protons. the bond in h2 is broken, and new bonds are formed between hydrogen and oxygen atoms. each electron associated with a hydrogen atom is shared with an oxygen atom.