In: Chemistry
1. Which of the following aqueous solutions are good buffer systems?
. 0.10 M barium hydroxide + 0.23 M barium chloride
0.20 M nitric acid + 0.17 M sodium nitrate
0.20 M hypochlorous acid + 0.20 M sodium hypochlorite
0.26 M ammonia + 0.33 M ammonium bromide
0.38 M potassium nitrate + 0.26 M potassium bromide
2. Which of the following aqueous solutions are good buffer systems?
. 0.26 M hydrobromic acid + 0.15 M sodium bromide.
0.35 M calcium perchlorate + 0.30 M potassium perchlorate.
0.30 M ammonia + 0.33 M ammonium bromide.
0.19 M calcium hydroxide + 0.26 M calcium chloride.
0.16 M hydrocyanic acid + 0.17 M perchloric acid.
3.Which of the following aqueous solutions are good buffer systems?
. 0.13 M acetic acid + 0.11 M sodium acetate
0.28 M perchloric acid + 0.21 M potassium perchlorate
0.32 M ammonium nitrate + 0.38 M ammonia
0.14 M potassium hypochlorite + 0.24 M hypochlorous acid
0.37 M hydrofluoric acid + 0.30 M sodium fluoride