Which of the following aqueous solutions are good buffer systems?

0.16 M acetic acid + 0.21 M potassium acetate
0.26 M perchloric acid + 0.19 M sodium perchlorate
0.19 M potassium cyanide + 0.25 M hydrocyanic acid
0.37 M hypochlorous acid + 0.24 M sodium hypochlorite
0.35 M ammonium bromide + 0.34 M ammonia

0.12 M acetic acid + 0.15 M potassium acetate
0.34 M ammonia +0.35 M ammonium bromide
0.10 M barium hydroxide + 0.24 M barium chloride
0.35 M calcium nitrate + 0.27 M calcium chloride
0.26 M nitric acid + 0.17 M potassium nitrate

Solutions

Expert Solution

Ans 1: The good buffer solution are:

a) 0.16 M acetic acid + 0.21 M potassium acetat: acetic

c) 0.19 M potassium cyanide + 0.25 M hydrocyanic acid

d) 0.37 M hypochlorous acid + 0.24 M Sodium hypochlorite

e) 0.35 M ammonia + 0.34 M ammonium bromide

Ans 2: The good buffer solution are:

a) 0.12 M acetic acid + 0.15 M potassium acetat: acetic

b) 0.34 M ammonia + 0.35 M ammonium bromide

queen_honey_blossom answered 1 year ago

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