Which of the following aqueous solutions are good buffer

Last updated: 6/28/2023

Which of the following aqueous solutions are good buffer systems a 0 21 M hydroiodic acid 0 17 M sodium iodide b 0 28 M ammonium bromide 0 39 M ammonia c 0 34 M acetic acid 0 27 M potassium acetate d 0 19 M potassium hydroxide 0 30 M potassium chloride De 0 13 M hydrofluoric acid 0 20 M potassium fluoride