An acid–base buffer is able to resist changes in pH due to the addition of small amounts of strong acid or base to the system. An acid–base buffer typically contains a weak acid and its conjugate base.   A buffer is prepared by mixing 33.2 mL of 0.209  M NaOH with 138.1  mL of 0.231 M acetic acid. What is the pH of this buffer? (The pKa for acetic acid is 4.75.)   Calculate the pH of this buffer after the addition of 0.192  g of solid NaOH.

Q: Calculate the pH of a buffer solution that contains 0.34M benzoic acid and 0.49 M potassium…

A: Using Henderson equation , we can solve this problem. Here benzoic acid is weak acid and potassium…

Q: For a buffer composed of 0.12 mol benzoic acid (C6H5COOH) and 0.20 mol sodium benzoate.  Calculate…

A: Answer:-. This question is answered by using the simple concept of calculation of pH of buffer…

Q: A student needs to prepare a buffer solution with a pH of 5.73. Assuming a pKa of 4.06, how many mL…

A: Given,Molarity of NaOH = 0.1 MMolarity of acid ( HB ) = 0.1 Mvolume of HB = 15.0 mLpH of the buffer…

Q: Select the statements that describe a method which can be used to make a buffer. Add appropriate…

A: Buffer  is used for maintaining pH .

Q: A buffer consists of 0.150 M acid, HA, and 0.200 M of its conjugate base, A. If HA has a K, of 4.84…

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Q: Define the following terms: titration equivalence point buffer point molarity What instrument are…

A: 1. Titration  = It is a laboratory method of quantitative chemical analysis in which the solution of…

Q: O adding 0.060 moles of HOCI

A: I   Buffer are solution that contain a buffer pair of either a weak acid and a salt of its…

Q: Using the Henderson-Hasselbach equation predict under which of the following conditions will the pH…

A: A buffer solution is an aqueous solution consisting of a mixture of a weak acid and its conjugate…

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

A: A buffer solution is an aqueous solution. It consist of a mixture of a weak acid and its conjugate…

Q: A buffer solution contains formic acid and a salt solution containing sodium formate. What is the pH…

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Q: 0.50 M solutions of each weak acid in the table are available. Choose an acid solution and determine…

A: Henderson Hasselbalch equation shows relation between pH and pKa. So, we will solve the above…

Q: + Titration of Strong Acid with Strong Base 100. mL of 0.200 M HCI is titrated with 0.250 M NaOH. A…

A: Here, Molarity of HCl=0.200MVolume of HCl=100mL×1L1000mL=0.1LMolarity of NaOH=0.250MVolume of NaOH…

Q: What is the pH of a solution prepared by mixing 800 ml of 0.25 M formic acid and 200 ml of 0.25 M…

A: We know weak acid and strong base makes a buffer solution.

Q: You are working in a lab and someone has just handed you a beaker filled with 110 ml of a mysterious…

A: pH of a buffer is calculated using Hasselbach Henderson equation: pH =pKa+log([Conjugate…

Q: Lactate is an important component in some intravenous solutions. Given pKa = 3.86 for lactic acid,…

A: pH = pKa  +  log ( [ conjugate base ]/[weak acid] ) ---------(i) pKa = 3.86 ( given) HC3H5O3…

Q: A 1.0 L buffer solution is 0.15 M in HCN and 0.10 M in NaCN. Which action will destroy the buffer?…

A: The crucial role of buffer is to prevent the pH change of the solution. Different types of buffers…

Q: A buffer is prepared by mixing 47.2 mL of 0.209 M NaOH with 135.0 mL of 0.231 M acetic acid. What is…

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Q: The pH of a bicarbonate-carbonic acid buffer is 6.18. Calculate the ratio of the concentration of…

A: The ratio of [H2CO3] to that of [HCO3-] is determined by using Henderson-Hasselbalch equation.

Q: a Calculate the pH of a solution that is 0.20 M HOCI and 0.88 M KOCI. Ka = 3.5x10-8 pH = 8.1 b In…

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Q: Use each of the two methods of buffer preparation to make a 1.0 M buffer with a 1:2 conjugate ratio…

A: The objective of the question is to calculate the amount of conjugate acid needed to prepare a…

Q: A buffer is prepared by mixing 48.2 mL of 0.196  M NaOH with 144.3  mL of 0.231 M acetic acid. What…

A: The objective of this question is to calculate the pH of a buffer solution prepared by mixing a…

Q: If you were trying to prepare a buffer with ammonia, NH3, what would be the substance that you would…

A: 1. Buffer solution are those whose pH value doesn't chage appricableby addition of small of acid…

Q: 0.50 M solutions of each weak acid in the table are available. Choose an acid solution and determine…

A: According to Henderson-Hasselbalch equation, pH=pKa+log[conjugate acid][base]

Q: suitable

A: Buffer solution worked at pH =  pKa-1 to pKa +1  Here pH = 7.0 then range should be 6 to 8 at this…

Q: 1. A buffer is prepared using 0.522 mol of NH4CI and 0.812 mol of NH3 to make 1.00 L of solution.…

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Q: If you have a solution with 1 mole of acetic acid HC2H3O2, which of the following can be added to…

A: We have to predict the chemical added to make a buffer solution.

Q: Which statement describes the action of a buffer composed of propionic acid (CH, H, COOH) and sodium…

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Q: A beaker with 195 mLmL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The…

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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.