Which of the following aqueous solutions are good buffer systems? (Select all that apply.) 0.35 M...

 

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Which of the following aqueous solutions are good buffer systems? (Select all that apply.) 0.35 M acetic acid + 0.21 M sodium acetate 0.31 M ammonium bromide + 0.30 M ammonia 0.18 M calcium hydroxide + 0.23 M calcium bromide 0.20 M hydrocyanic acid + 0.20 M sodium cyanide 0.22 M perchloric acid + 0.22 M sodium perchlorate Which of the following aqueous solutions are good buffer systems? (Select all that apply.) 0.35 M acetic acid + 0.21 M sodium acetate 0.31 M ammonium bromide + 0.30 M ammonia 0.18 M calcium hydroxide + 0.23 M calcium bromide 0.20 M hydrocyanic acid + 0.20 M sodium cyanide 0.22 M perchloric acid + 0.22 M sodium perchlorate