To prepare a buffer solution, 75.0 cm3 of 0.220 mol dmโ3 butanoic acid is reacted with 50.0 cm3 of 0.185 mol dmโ3 sodium hydroxide.
Ka for butanoic acid is 1.5 ร 10โ5 mol dmโ3 at 25 ยฐC
Calculate the pH of the buffer solution at 25 ยฐC. Give your answer to two decimal places.
can you please show your working out as im confused to how you calculate this.