QUESTION 24. Acetic acid is a convenient buffer system in the slightly acidic range. What mass of sodium acetate (NaCH3CO2) must be added to 0.750 L of 0.116 M solution of acetic acid to make a buffer of pH = 5.00? The Ka of acetic acid is 1.8E-5.   How many moles of acid are required to change the pH of the solution in part a by 0.05 pH units?

Q: Calculate the mass of sodium acetate that must be added to 2.4 L of a 0.150 M acetic acid solution…

A: Since acetic acid is monoprotic acid Hence the pH of monoprotic acid buffer is given by…

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Q: Consider a 25.0 mL buffer solution containing 0.100 M sodium alderate and 0.126 M alderic acid. What…

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Q: a. Calculate the pH of a mixture of 0.25 M acetic acid and 0.1 M sodium acetate. b. What happens to…

A: pH is negative logarithm of Hydrogen ion concentration  expressed in mole/litre

Q: last

A: Since you have asked multiple question, we will solve the first question for you.If you want any…

Q: A titration is carried out to determine the molecular weight of oxalic acid. In this experiment,…

A: Given : Mass of oxalic acid = 0.617 g Concentration of NaOH = 0.75 M Volume of NaOH solution = 18.3…

Q: The pk, for the acid dissociation reaction of bicarbonate is 10.33. HCO3 (aq) + H2O(1) 2 CO32-(aq) +…

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Q: equivalence

A: ( M1 • V1 )NaOH  = ( M2 • V2 )acid  V1 = ( 0.15M • 25.0mL ) / 0.20M  V1 = 18.75 mL    Total volume,…

Q: 3) Arsenic acid has 3 pK,'s: 2.19, 6.94, and 11.51. Determine the concentrations of all the species…

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Q: Suppose there is 1.00 L of an aqueous buffer containing 60.0 mmol of benzoic acid (pKa = 4.20) and…

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Q: Consider the titration of a 25.0mL sample of 0.195M acetic acid (CH3COOH) with 0.300M NaOH.…

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Q: Can someone please explain why and how the step 1 was done? What was its purpose? Why was only the…

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Q: What mass of sodium benzoate should be added to 160.0 mL of a 0.16 M benzoic acid solution in order…

A: We have given that pH = 4.3 pKa of benzoic acid = 4.2 Concentration of benzoic acid = [Benzoic…

Q: A biochemist prepares two stocks of sodium phosphate buffer by titrating phosphoric acid with sodium…

A: Given: pKa of phosphoric acid are 2.15, 7.20 and 12.35 Volume of 7.20 buffer is 50.0 mL Volume of…

Q: Weak acid HMa (0.150 M) has 65.00 mL is titrated with 0.15 M NaOH. The Kaminoan scientist adds…

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Q: Account for the shape of the curve beyond 25mL. The pH at the equivalence point for this titration…

A: Given a titration curve. It is the graph of pH of the solution vs volume of the titrant. Account for…

Q: Calculate the pH of A buffer solution contains 0.052 M HC2H3O2 and 0.025 M NaC2H3O2. , Ka for…

A: Given data, Concentration of HC2H3O2 is 0.052 M  Concentration of NaC2H3O2 is 0.025 M  Ka for…

Q: A benzoic acid-sodium benzoate buffer is prepared by dissolving a certain amount of sodium benzoate,…

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Q: Calculate the amount of solid sodium acetate NaC 2 H 3 O 2 which must be added to 0.300 L of a 0.50…

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Q: Determine the pH at the point in the titration of 40.0 mL of 0.200 M HC4H,O2 with 0.100 M Sr(OH)2…

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Q: A solution is made by dissolving 0.1283 g of the acid form of the buffer TRIS (molecular mass =…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: Determine the pH at the point in the titration of 40.0 mL of 0.200 M HC₄H₇O₂ with 0.100 M Sr(OH)₂…

A: Given:  Volume of HC4H7O2=40 mL  Concentration of HC4H7O2 = 0.200 M Concentration of Sr(OH)2=0.100…

Q: What is the pH of a buffer prepared by adding 0.607 molof the weak acid HA to 0.609 molmol of NaA in…

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Q: Determine the pH during the titration of 39.6 mL of 0.226 M trimethylamine ((CH3)3N, Kp = 6.3x10-5)…

A: Since you have asked a question with multiples of parts we will answer only 1st 3 subparts for you.…

Q: One drop, 0.200 cm3, of 1.00 mol dm-3 of aqueous sodium hydroxide, NaOH, solution is added to 25.0…

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Q: 3. (a) How many grams of sodium succinate (140 g/mol) and disodium succinate (162 g/mol) must be…

A: A buffer solution of 50Mm with a pH 6, has to be prepared using sodium succinate and disodium…

Q: Suppose you want to do a physiological experiment that calls for a pH 6.50 buffer. You find that the…

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Q: An acid–base buffer is able to resist changes in pH due to the addition of small amounts of strong…

A: Given:-molarity of NaOH=0.209 Mmolarity of CH3COOH=0.231 MTo find:-PH of Buffer solutionsolution:-As…

Q: Questions 2 and 3 pertain to the following scenario: A pharmacist wishes to prepare 2 L of stock…

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Q: A buffer is prepared by adding 0.40 moles of formic acid (HCOOH) and 0.60 moles of sodium formate…

A: A solution which resists the change in pH when a small amount of base or acid is added to it is…

Q: How to find the pH at the second equivalence point of 50.00 mL carbonic acid titrated with 0.1 M…

A: pH of  a solution is the concentration of H+ ions in it. Acid-base titrations can be evaluated by…

Q: A stock solution contains 1.4 mM phosphate. From this stock solution, 51.4 uL is diluted with 264 uL…

A: Concentration of Stock solution, C1 =1.4 mM Volume of stock solution taken, V1 = 51.4 μL…

Q: 1.34 L buffer solution consists of 0.128 M butanoic acid and 0.289 M sodium butanoate. Calculate the…

A: When a strong base is added to the buffer solution, then it reacts with the weak acid of the buffer…

Q: You wish to prepare a buffer consisting of acetic acid and sodium acetate with a total acetic acid…

A: A 2L buffer solution with a pH of 5.0 using acetic acid and sodium acetate has to be prepared with a…

Q: have to be added to 1.0 L of a 1.948 M HA solution in order to obtain a buffer of 3.11? (The Ka for…

A: We will use buffer equation

Q: Calculate pH for a weak base/strong acid titration. Determine the pH during the titration of 31.8 mL…

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Q: Consider exactly one litre of a propanoic acid buffer solution, containing 0.600 M C3H5OOH and 0.252…

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Q: A phenol/phenolate buffer was made up by mixing 0.0125 mol of phenol (C6H5OH) and 0.0135 m of…

A: Given : Moles of phenol = 0.0125 mol Moles of phenolate = 0.0135 mol Volume of buffer = 500 mL = 500…

Q: the pH of an acetate buffer prepared by dissolving sodium acetate (5.21 g) and acetic acid (2.19 g)

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Q: A 1.10 g sample of benzoic acid was dissolved in water to give 76.9 mL of solution. This solution…

A: The solution is given below -

Q: 14- Triethylammonium chloride (22.00g, (C2H5);NHCI, 137.65 g/mol) is added to water to make 1.75 L…

A: Hello. There are multiple questions posted together. The solution to the first question has been…

Q: The Ka values for nitrous acid (HNO2) and hypochlorous (HClO) acid are 4.5 * 10-4 and 3.0 * 10-8,…

A: Given data: The Ka values for nitrous acid are 4.5 ×10-4. The Ka values for hypochlorous acid…

Q: Calculate the pH of a 100.-mL buffer prepared with 1.30 g of imidazole (C3H¾N2) and 1.30 g of…

A: By addition of acid , base part of buffer system i.e. imidiazole unit reacts with acid to form salt…

Q: The buffer was made by combining 0.220 M lactic acid (HC3H5O3) and 0.200 M sodium lactate (…

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Q: For the titration of 50.0 mL of 0.150 M ethylamine. C2H5NH2,with 0.100 M HCl, find the pH at each of…

A: Since you have asked a question with multiple sub parts we will solve the first 3 parts for you. If…

Q: Calculate the amount of NaOH (in grams) to be added to 0.500 L of buffer equal to 1.00 M in acetic…

A: Hello. Since more than one question has been asked, the first question shall only be answered in…

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.