Which of the following aqueous solutions are good buffer systems? 0.33 M ammonia
ID: 518570 • Letter: W
Question
Which of the following aqueous solutions are good buffer systems?
0.33 M ammonia + 0.30 M barium hydroxide
0.36 M barium nitrate + 0.27 M calcium nitrate
0.27 M perchloric acid + 0.24 M potassium perchlorate
0.19 M potassium hydroxide + 0.24 M potassium chloride
0.15 M acetic acid + 0.18 M potassium acetate
0.11 M acetic acid + 0.13 M potassium acetate
0.33 M ammonium bromide + 0.32 M ammonia
0.12 M potassium hydroxide + 0.26 M potassium bromide
0.31 M hydrofluoric acid + 0.23 M potassium fluoride
0.26 M hydroiodic acid + 0.15 M potassium iodide
Explanation / Answer
0.15 M acetic acid + 0.18 M potassium acetate
0.11 M acetic acid + 0.13 M potassium acetate
0.33 M ammonium bromide + 0.32 M ammonia
are acts as good buffer solutions.
A buffer solution is defined as the solution of larege amounts of weak acid and small amount of it's salt of strong base or large amount of weak base and small amount of it's salt of strong acid which can resist the pH of the solution by adding small amounts of strong acid or strong base.
In the given option except above all are not buffer solutions according to definition.
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