Question

In: Chemistry

Which of the following aqueous solutions are good buffer systems?


Which of the following aqueous solutions are good buffer systems? 


  • 0.23 M nitric acid + 0.18 M sodium nitrate 

  • 0.13 M calcium hydroxide + 0.24 M calcium chloride 

  • 0.19 M hydrofluoric acid + 0.11 M sodium fluoride 

  • 0.35 M hypochlorous acid + 0.28 M potassium hypochlorite 

  • 0.34 M ammonium nitrate + 0.36 M ammonia

Solutions

Expert Solution

Correct choices are 3), 4) and 5)

Reason:

Buffers are formed by weak acid and its salt, weak base and its salt or salt or weak acid and weak base.

Strong acid/strong bases and their salts cannot form buffer solutions. [So, 1) and 2) do not form buffers]

3) and 4) are mixtures of weak acids and their salts with strong bases.

5) is a mixture of weak base and its salt with strong acid.

queen_honey_blossom answered 2 years ago
Next > < Previous

Related Solutions

Which of the following aqueous solutions are good buffer systems?
Which of the following aqueous solutions are good buffer systems? 0.33 M nitrous acid + 0.27 M potassium nitrite 0.24 M nitric acid + 0.23 M sodium nitrate 0.32 M ammonium nitrate + 0.33 M ammonia 0.16 M hypochlorous acid + 0.12 M sodium hypochlorite 0.16 M potassium fluoride + 0.28 M hydrofluoric acid
Which of the following aqueous solutions are good buffer systems?
Which of the following aqueous solutions are good buffer systems? 0.35 M barium bromide + 0.21 M sodium bromide 0.21 M hydrobromic acid + 0.21 M sodium bromide 0.20 M calcium hydroxide + 0.27 M calcium chloride 0.18 M hydrocyanic acid + 0.22 M potassium cyanide 0.29 M ammonia + 0.36 M barium hydroxide
Which of the following aqueous solutions are good buffer systems?
Which of the following aqueous solutions are good buffer systems? 0.21 M perchloric acid + 0.22 M potassium perchlorate 0.14 M potassium hypochlorite + 0.20 M hypochlorous acid 0.38 M acetic acid + 0.30 M potassium acetate 0.28 M ammonium bromide+ 0.36 M ammonia 0.11 M hydrofluoric acid + 0.13 M potassium fluoride
Which of the following aqueous solutions are good buffer systems?
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 ammoniaWhich of the following aqueous solutions are good buffer systems? 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...
Which of the following aqueous solutions are good buffer systems?
Which of the following aqueous solutions are good buffer systems? 0.31 M ammonium bromide +0.37 M ammonia 0.18 M potassium fluoride + 0.23 M hydrofluoric acid 0.34 M hydrocyanic acid + 0.23 M sodium cyanide 0.24 M hydrochloric acid + 0.21 M sodium chloride 0.22 M acetic acid + 0.18 M sodium acetate Which of the following aqueous solutions are good buffer systems? 0.33 M calcium nitrate + 0.25 M sodium nitrate 0.14 M calcium hydroxide + 0.22 M calcium chloride 0.30 M ammonia + 0.38 M potassium hydroxide 0.14...
Which of the following aqueous solutions are good buffer systems? (select all that apply) .- 0.13...
Which of the following aqueous solutions are good buffer systems? (select all that apply) .- 0.13 M hypochlorous acid + 0.12 M potassium hypochlorite - 0.10 M sodium nitrite + 0.23 M nitrous acid - 0.22 M hydroiodic acid + 0.25 M potassium iodide - 0.35 M hydrofluoric acid + 0.20 M potassium fluoride - 0.31 M ammonium bromide + 0.30 M ammonia - 0.20 M hydrobromic acid + 0.18 M potassium bromide. - 0.31 M ammonia + 0.36 M...
Which of the following aqueous solutions are good buffer systems? . a. 0.15 M sodium hydroxide...
Which of the following aqueous solutions are good buffer systems? . a. 0.15 M sodium hydroxide + 0.29 M sodium bromide . b. 0.31 M hydrofluoric acid + 0.20 M potassium fluoride . c. 0.27 M nitric acid + 0.24 M potassium nitrate . d. 0.16 M hydrocyanic acid + 0.18 M potassium cyanide . e. 0.31 M ammonium nitrate + 0.30 M ammonia . b.How many moles of sodium hydroxide would have to be added to 250 mL of...
Which of the following aqueous solutions are good buffer systems? . 0.27 M nitric acid +...
Which of the following aqueous solutions are good buffer systems? . 0.27 M nitric acid + 0.23 M potassium nitrate 0.30 M acetic acid + 0.27 M sodium acetate 0.34 M ammonium nitrate + 0.38 M ammonia 0.15 M hydrocyanic acid + 0.12 M sodium cyanide 0.16 M potassium fluoride + 0.23 M hydrofluoric acid
Which of the following aqueous solutions are good buffer systems? . 0.36 M sodium perchlorate +...
Which of the following aqueous solutions are good buffer systems? . 0.36 M sodium perchlorate + 0.28 M sodium chloride 0.11 M hypochlorous acid + 0.13 M sodium hypochlorite 0.29 M hydrobromic acid + 0.19 M potassium bromide 0.34 M ammonia + 0.32 M ammonium bromide 0.15 M potassium hydroxide + 0.25 M potassium bromide
Which of the following aqueous solutions are good buffer systems? . 0.28 M ammonium bromide +...
Which of the following aqueous solutions are good buffer systems? . 0.28 M ammonium bromide + 0.31 M ammonia 0.21 M hypochlorous acid + 0.17 M sodium hypochlorite 0.28 M hydrochloric acid + 0.17 M sodium chloride 0.32 M acetic acid + 0.21 M sodium acetate 0.19 M potassium cyanide + 0.25 M hydrocyanic acid 0.16 M hypochlorous acid + 0.19 M hydrochloric acid. 0.20 M calcium hydroxide + 0.21 M calcium bromide. 0.33 M barium nitrate + 0.21 M...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT