A buffer solution contains 0.63 mol of hydrosulfuric acid (H,S) and 0.42 mol of sodium hydrogen sulfide (NaHS) in 7.20 L. The Ka of hydrosulfuric acid (H2S) is K = 9.5e-08. (a) What is the pH of this buffer? pH = (b) What is the pH of the buffer after the addition of 0.51 mol of NaOH? (assume no volume change) pH = (c) What is the pH of the original buffer after the addition of 0.27 mol of HI? (assume no volume change) pH =

A buffer solution contains 0.63 mol of hydrosulfuric acid (H,S) and 0.42 mol of sodium hydrogen sulfide (NaHS) in 7.20 L. The Ka of hydrosulfuric acid (H2S) is K = 9.5e-08. (a) What is the pH of this buffer? pH = (b) What is the pH of the buffer after the addition of 0.51 mol of NaOH? (assume no volume change) pH = (c) What is the pH of the original buffer after the addition of 0.27 mol of HI? (assume no volume change) pH =

Name: 2 A buffer solution contains 0.63 mol of hydrosulfuric acid (H,S) and
Uploaded: 2022-10-14T12:35:01.000Z
Channel: Bartleby
Description: 2 A buffer solution contains 0.63 mol of hydrosulfuric acid (H,S) and 0.42 mol of sodium hydrogen sulfide (NaHS) in 7.20 L.The Ka of hydrosulfuric acid (H2S) is Ka = 9.5e-08.(a) What is the pH of this buffer?pH =(b) What is the pH of the buffer after

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter14: Equilibria In Acid-base Solutions

Section: Chapter Questions

Problem 12QAP: A buffer is prepared by dissolving 0.062 mol of sodium fluoride in 127 mL of 0.0399 M hydrofluoric...

See similar textbooks

Similar questions

A buffer solution is prepared by adding 5.50 g of ammonium chloride and 0.0188 mol of ammonia to enough water to make 155 mL of solution. (a) What is the pH of the buffer? (b) If enough water is added to double the volume, what is the pH of the solution?
A buffer is prepared by dissolving 0.062 mol of sodium fluoride in 127 mL of 0.0399 M hydrofluoric acid. Assume no volume change after NaF is added. Calculate the pH of this buffer.
A buffer solution is prepared by dissolving 1.00 g of sodium acetate (CH3COONa) into 100.00 mL of a 0.100 M solution of acetic acid. Then 2.00 mL of a 1.00 M solution of sodium hydroxide is added to the acetic acid/sodium acetate buffer solution. The Ka of acetic acid is 1.8 x 10-5. What is the pH of the solution after adding NaOH?
Tris(hydroxymethyl)aminomethane is a common base used to prepare buffers in biochemistry. Its Kb is 1.2 x 10−6. What would be the pH of the resulting solution if 100.0 mL of 0.05240 M KOH is added to 900.0 mL of the buffer containing 0.01335 M tris (B) and 0.02960 M tris hydrochloride (BH+)?
A buffer solution is prepared by dissolving 1.00 g of sodium acetate (CH3COONa) into 100.00 mL of a 0.100 M solution of acetic acid. Then 1.00 mL of a 1.00 M solution of hydrochloric acid is added to the acetic acid/sodium acetate buffer solution. The Ka of acetic acid is 1.8 x 10-5. What is the pH of the solution after adding HCL?
A solution is formed by adding 5.20 grams of solid potassium acetate, KC₂H₃O₂, to 500.0 ml of 0.0730M calcium acetate, Ca(C₂H₃O₂)₂. Calculate the pH of the resulting solution. You may assume that the potassium acetate dissolve completely and that the change in volume is negligible with the addition of the solid.pH = ___
A buffer of pH = 7.5 is desired. Which two of the following compounds should be dissolved in water in equimolar amounts to provide this buffer solution: HNO2, HClO, HCN, NaNO2, NH3, KCN, KClO, NH4Cl?
Calculate the molar solubility (aq., 20 oC) of aluminum hydroxide, Al(OH)3, in 0.000852 M NaOH. The Ksp of Al(OH)3is 2.0 x 10–32.
At 25oC, a 1-L buffer solution is prepared by mixing acetic acid and sodium acetate.A) If the solution is to be buffered at pH = 5, what should be the molar ratio of sodium acetate to acetic acid?B) If the buffer is found to be 1.55M in acetic acid and 1.70M in sodium acetate, what will be the pH of the solution?C) If 0.15 mol of NaOH was added to the solution in B, what will be the pH of the solution?D) If the pH of the solution in B is 4.50, how many moles of HCl was added to the solution?
a buffer has been prepared using 0.1 moles of sodium acetate (NaAc) and 0.1 moles of acetic acid (HAc), which has been added to 100 ml of water. What is the pH of the solution?
A solution is formed by adding 6.00 grams of solid potassium acetate, KC₂H₃O₂, to 200.0 ml of 0.0240M calcium acetate, Ca(C₂H₃O₂)₂. Calculate the pH of the resulting solution. You may assume that the potassium acetate dissolve completely and that the change in volume is negligible with the addition of the solid.
Consider a buffer solution containing 0.040 M ammonia (NH3) and 0.060 M ammonium chloride (NH4Cl). What is the pH of the resulting buffer solution after adding 5.0 mL of 1.0 M sodium hydroxide (NaOH) to 1 L of this buffer? Assume that the volume change upon addition of sodium hydroxide into the buffer is not significant. The Ka of NH4+ is 5.70 x 10-10.

SEE MORE QUESTIONS

Recommended textbooks for you

Chemistry: Principles and Reactions

Chemistry

ISBN:

9781305079373

Author:

William L. Masterton, Cecile N. Hurley

Publisher:

Cengage Learning

Principles of Modern Chemistry

Chemistry

ISBN:

9781305079113

Author:

David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:

Cengage Learning

General Chemistry - Standalone book (MindTap Cour…

Chemistry

ISBN:

9781305580343

Author:

Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell

Publisher:

Cengage Learning

Chemistry: Principles and Reactions

Chemistry

ISBN:

9781305079373

Author:

William L. Masterton, Cecile N. Hurley

Publisher:

Cengage Learning

Principles of Modern Chemistry

Chemistry

ISBN:

9781305079113

Author:

David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:

Cengage Learning

General Chemistry - Standalone book (MindTap Cour…

Chemistry

ISBN:

9781305580343

Author:

Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS