Which of the following buffer systems would be the best choice to create a buffer with...

Which of the following buffer systems would be the best choice to create a buffer with pH = 9.00? HF/KF HNO2/KNO2 NH3/NH4Cl HClO/KClO

For the best system, calculate the ratio of the masses of the buffer components required to make the buffer. Express your answer using two significant figures.

Solutions

Expert Solution

queen_honey_blossom answered 1 month ago

Next > < Previous

Related Solutions

Which of the following buffer systems would be the best choice to create a buffer with...

Which of the following buffer systems would be the best choice to create a buffer with pH = 9.00? HF/KF, HNO2/KNO2, NH3/NH4Cl, HClO/KClO Answer this: For the best system, calculate the ratio of the masses of the buffer components required to make the buffer. m(NH3)/m(NH4Cl) = ? Express your answer using two significant figures.

Which of the following buffer systems would be the best choice to create a buffer with...

Which of the following buffer systems would be the best choice to create a buffer with pH = 7.3? a)HC2H3O2/KC2H3O2 b)HClO2/KClO2 c)NH3/NH4Cl d)HClO/KClO

A. Which of the following buffer systems would be the best choice to create a buffer...

A. Which of the following buffer systems would be the best choice to create a buffer with pH = 9.05? HF/KF HNO2/KNO2 NH3/NH4Cl (correct answer) HClO/KClO B. For the best system, calculate the ratio of the masses of the buffer components required to make the buffer. Express your answer using two significant figures. m(NH3)/m(NH4Cl) =

1a) Which of the following buffer systems is the best choice to create a buffer with...

1a) Which of the following buffer systems is the best choice to create a buffer with pH = 7.20? CH3COOH/CH3COOK HClO2/KClO2 NH3/NH4Cl HClO/KClO --> ANS B) For the best system, calculate the ratio of the masses of the buffer components required to make the buffer. For HClO, Ka=4.0×10−8.

Which of the following buffers would be the best choice for a desired pH of 3.0:...

Which of the following buffers would be the best choice for a desired pH of 3.0: a. Acetic acid (pKa=4.74) b. HF (pKa= 3.14) c. Carbonic acid (pKa=6.37) d. Propanoic acid (pKa=4.85) e. Not enough information is given A buffer (1L total volume) contains 0.15 moles ammonia and 0.25 moles ammonium chloride (pKa=9.26). What is the pH of that buffer solution? What is the pH after 0.0025 moles of KOH are added? Which of the...

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...

Subjects