Concept explainers
(a)
Interpretation:
Whether the given
Concept introduction:
Buffer:
A buffer is a solution that can resist pH change upon the addition of an acidic or basic component. Buffer solution used to maintain the pH of the solution, when the small amount of acid or bases is added.
Buffer solution is containing of weak acid and its conjugate base, or weak base and its conjugate acid. Buffer solution is very important for the specific pH reaction where the stable pH is needed.
(b)
Interpretation:
Whether the given
Concept introduction:
Refer to part (a)
(c)
Interpretation:
Whether the given
Concept introduction:
Refer to part (a)
Want to see the full answer?
Check out a sample textbook solutionChapter 16 Solutions
Chemistry: Principles and Practice
- A buffer solution was prepared by adding acetic acid and sodium acetate to prepare half a liter of the solution. If the concentration of the acid is equal to the salt concentration, what is the value of the acid function after adding 0.1 normal, and the volume of 10 ml of sodium hydroxide, and if you know that the acid ionization constant is 1.85 x 10-6 * O 3.54 O 5.68 O 4.87arrow_forwardWhich of the following aqueous solutions are good buffer systems? A) 0.31 M calcium chloride + 0.25 M calcium bromide B) 0.18 M hydrofluoric acid + 0.12 M potassium fluoride C) 0.32 M ammonia + 0.38 M ammonium nitrate D) 0.16 M sodium hydroxide + 0.24 M sodium chloride E) 0.23 M perchloric acid + 0.24 M potassium perchloratearrow_forwardChemistry A 94.0 mL sample of 0.0300 M HIO, is titrated with 0.0600 M NaOH solution. Calculate the pH after the following volumes of base have been added. (a) 14.1 mL pH = (d) 47.9 ml pH- (b) 46.1 mL pH = (e) 90.7 ml pH = (c) 47.0 mL pH =arrow_forward
- You are asked to prepare a pH = 3.00 buffer solution startingfrom 1.25 L of a 1.00 M solution of hydrofluoric acid(HF) and any amount you need of sodium fluoride (NaF).(a) What is the pH of the hydrofluoric acid solution priorto adding sodium fluoride? (b) How many grams of sodiumfluoride should be added to prepare the buffer solution?Neglect the small volume change that occurs when the sodiumfluoride is added.arrow_forwardCalculate the pH change that results when 15 mL of 2.0 M HCI is added to 580. mL of each of the following solutions (a) pure water 4.0-5.70 (b) 0.10 M CH3COO 4.04.28 (c) 0.10 M CH3COOH 4.0 (d) a solution that is 0.10 M in each CH3COO and CH3COOH. 4.0arrow_forwardI dont know how to do this question.arrow_forward
- You have 1.5 liter of solution that is composed of 8.88 grams of NH3 and 11.33 grams of ammonium chloride mixed well. Kb for ammonia =1.8 x 10^-5 (A) is this a buffer solution? Why or why not? (B)if it is a buffer solution, what is the pH of this buffer solution? (C)how many mL of 1.50 M HCl can be added to this solution before the buffer is exhausted (d) how many mL of 1.5 M NaOH can be added to this solution before the buffer is exhausted?arrow_forwardPlease Follow this Properly, I Like your answer Structure, Accuracy, Concept, Please No submit Handwriting.arrow_forwardA 0.1724-g sample of an unknown monoprotic acid was dissolved in 26.9 mL of water and titrated with 0.0623 M NaOH solution. The volume of base required to bring the solution to the equivalence point was 19.8 mL. (a) Calculate the molar mass of the acid. (b) After 11.5 mL of base had been added during the titration, the pH was determined to be 5.66. What is the Ka of the unknown acid?arrow_forward
- Calculate the pH change that results when 11 mL of 5.1 M NaOH is added to 790. mL of each the following solutions. Use the Acid-Base Table. (a) pure water 4.0 5.84 (b) 0.10 M NH4CI 4.0 5.43 (c) 0.10 M NH3 4.0✔ X (d) a solution that is 0.10 M in each NH4+ and NH3 4.0✔arrow_forwarda) What is the pH of a buffer solution that is made by dissolving 125.5 g of sodium benzoate and 166.9g of benzoic acid in 500 mL of water? (b) What is the pH if you added 26.7 mL of 2.22 M NaOH to 254 mL of the buffer solution from above? (c) What is the pH if you added 32.8 mL of 3.36 M HCl to 354 mL of the buffer solution from above? Dontarrow_forwardAn aqueous solution contains 0.26 M hypochlorous acid.One Liter of this solution could be converted into a buffer by the addition of:(Assume that the volume remains constant as each substance is added.) 0.130 mol KOH 0.26 mol NaClO4 0.27 mol NaClO 0.27 mol HBr 0.13 mol HBrarrow_forward
- Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage LearningGeneral Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage LearningChemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage Learning
- Chemical Principles in the LaboratoryChemistryISBN:9781305264434Author:Emil Slowinski, Wayne C. Wolsey, Robert RossiPublisher:Brooks Cole