Question
In: Chemistry
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
queen_honey_blossom answered 9 months agoRelated 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...
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