# Which of the following aqueous solutions are good buffer systems? 0.18 M hydrocyanic acid + 0.19...

###### Question:

Which of the following aqueous solutions are good buffer systems? 0.18 M hydrocyanic acid + 0.19 M hydroiodic acid 0.30 M ammonia + 0.35 M ammonium nitrate 0.32 M sodium nitrate + 0.27 M potassium nitrate 0.25 M perchloric acid + 0.25 M sodium perchlorate 0.11 M barium hydroxide + 0.25 M barium chloride

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