A student needs to prepare a buffer solution with a pH of 5.59. Assuming a pK a of 4.54, how many mL of 0.1 M N a O H would need to be added to 24.0 mL of 0.1 M HB to prepare this buffer? Please include a proper (abbreviated) unit. HINT : Use pH = pK a + log ([B minus]/[HB]) or, if concentrations are the same, pH = pK a + log (Volume of O H minus/ (Volume of HB - Volume of O H minus)

Q: You are asked to prepare a pH = 4.00 buffer startingfrom 1.50 L of 0.0200 M solution of benzoic acid…

A: a) The dissociation constant of benzoic acid is Ka = 6.3 X 10-5  And the dissociation reaction of…

Q: Determine the pH during the titration of 39.7 mL of 0.222 M dimethylamine (CH)NH, K, = 5.9×10) by…

A: Since we only answer up to 3 subparts, we'll answer the first 3. Please resubmit the question and…

Q: How many mL of 0.10 M NaOH should a student add to 25.0 mL of 0.10 M HFor to prepare a buffer with a…

A: Given that, 25.0 mL of 0.10 M HF. The Ka of HF is 1.8×10-4. Also, the ratio of [F-]/[HF] = 1.2. The…

Q: HCN] ka=4.0x10^-10    pka=10.32 An aqueous solution contains 0.447 M hydrocyanic acid. How many mL…

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Q: Concentration Buffer solution pka Desired ph 0.50 M Acetate 4.70 5.0 250mL was used to prepare…

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Q: Formic acid, HFor, has a Ka value of 1.8 # 10-4 . You need to prepare 150 mL of a buffer hav-ing a…

A: The question is based on the concept of buffer solution.   A buffer is a solution which resist any…

Q: (CH5COOH) and any amount you need of sodiuhenzo ate (C,H5COONA). (a) What is the pH of the benzoic…

A: Given data : The pH of a buffer solution = 4.00 The Volume of a solution = 1.50 L The concentration…

Q: A buffer is made up of 2.0 mL of 0.1 M weak acid (AH) and 20.0 mL of 0.1 M conjugate base (A minus).…

A: Given  Volume of weak acid = 2 mL                                    = 2 × 10-3 Liter        ( 1 mL…

Q: 3. You need to prepare 100 mL of a 0.200 M acetate buffer at pH 5.00. The pKa of acetic acid is…

A: We are required to prepare a 100 mL of  0.200 M acetate buffer solution at a pH of 5.00.  The pKa…

Q: 3. 200 mL of 0.7M LİOH is titrated with 1.0 M CH,COOH. Ka of acetic acid is 1.8 x 10* find the final…

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Q: Strong base is dissolved in 595 mL of 0.600 M weak acid (K, = 3.52 × 10 ) to make a buffer with a pH…

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Q: with 0.100 M NaOH. Calculate 1 A 50.00 mL aliquot of 0.0500 M acetic acid was titrated the pH after…

A: i) 0.00ml of NaOH CH3COOH <------> CH3COO-+ H+ Ka = [CH3COO ][H+ ]/[CH3COOH] = 1.78×10-5 at…

Q: 0.95 M CH,COON. Calculate the pH of 1.00 L of the buffer before and after the 1.08 M CH,COOH…

A: Given, 0.95 M sodium acetate 1.08 M acetic acid.. Volume 1.00 liter...

Q: What is the pH at each of the following points in the titration of 25.00 mL of 0.100 M CH;COOH with…

A: Buffers are specifically known for maintaining any alteration in their pH while adding certain…

Q: For the titration of 25.00 mL of 0.1000M HCI with 0,1000 M NaOH, calculate the pH of the reaction…

A: "Since you have asked multiple parts of a same question, we will answer only first 3 parts for you.…

Q: Consider a buffer solution that contains 0.55 M NH2CH2CO2H and 0.35 M NH2CH2CO2Na.…

A: a. mol of acid = MV = 0.35*0.25 = 0.0875   mol of conjguate = MV = = 0.55*0.25 = 0.1375   after…

Q: buffer system has 3[HA]=[A-]. Given that the pKa is 7.2, what is the pH of the buffer solution at…

A: Given,  3[HA]=[A-]  [A-]/[HA] = 3  pKa = 7.2  It is Acidic buffer,   pH = pKa + log([A-]/[HA])

Q: For the addition of 0.1 mol/L NaOH to 25 mL of 0.1 mol/L HCl   prepare a "ph curve" as follows:…

A: Since you have posted multiple questions, we will answer the first one for you. To get the remaining…

Q: A buffer is made up of 2.0 mL of 0.1 M HC2H3O2 and 20.0 mL of 0.1 M N a C2H3O2. The pH of the buffer…

A: Since the concentration of acid HC2H3O2 and NaC2H3O2 is given same and is 0.1 M Hence using…

Q: mistry graduate student is given 450. mL of a 0.60M propanoic acid (HC,H;CO,) solution. Propanoic…

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

Q: What is the pH at each of the following points in the titration of 25.00 mL of 0.100 M CH;COOH with…

A: Aqueous solutions always contain certain pH which expresses their acidic/alkaline characteristics.…

Q: Calculate the pH during the titration of 25.00 mL of 0.1000 M HCN(aq) with 0.1000 M KOH(aq) after…

A: This question belongs to Ionic Equilibrium. First we will calculate the mmols of acids titrated with…

Q: F)

A: The number of moles of NaOH in 50 mL of 0.0500 M is calculated as shown below where n is the number…

Q: The pKa of acetic acid is 4.76. What volume of 2 M HCI can be added to 100 mL of 0.1M acetate buffer…

A: For acetate buffer, the pH is given by the expression: pH=pKa+log[Acetate ions][Acetic acid]…

Q: For the addition of 0.1 mol/L NaOH to 25 mL of 0.1 mol/L HCl   prepare a "ph curve" as follows:…

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Q: Which combination can be used to make a buffer with a pH of 4.2? The Ka of benzoic acld, the Ka of…

A: We will choose correct option

Q: For the addition of 0.1 mol/L NaOH to 25 mL of 0.1 mol/L HCl. prepare a "ph curve" as follows: a)…

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Q: Determine the pH during the titration of 37.3 mL of 0.336 M methylamine (CH3NH2, K = 4.2×10*) by…

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Q: Construct a rough plot of pH versus volume of added base for the titration of 50 mL of 0.045 M HCN…

A:

Q: A buffer made up of equal volumes (396.8 mL) of each of 0.618 M A H and 0.857 M A minus. What is p H…

A: Given data,Molarity of AH=0.618MMolarity of A-=0.857MVolume of buffer=396.8mL=0.3968LMolarity of…

Q: 9. Calculate the pH of 0.250 L of 0.36 M formic acid (CH2O2) – 0.30 M sodium formate (CHOżNa)…

A: The pH of a solution can be determined by Henderson’s equation: Calculation of pKa:

Q: Calculate the pH of a solution that is 0.20 M HOC1 and 0.92 M KOCI. Ka = 3.5x10-8 pH = 8.16 b In…

A:

Q: A)

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: please answer all of them especially at 50 ml. Thank you. Consider the titration of 80.0 mL of…

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Q: Calculate the pH during the titration of 20.00 mL of 0.1000 M HCN(aq) with 0.2000 M RbOH(aq) after…

A: We have to find the pH of resulting solution.

Q: A buffer is made up of 2.0 mL of 0.1 M weak acid (AH) and 20.0 mL of 0.1 M conjugate base (A minus).…

A: Calculation of no. of mol of HA: Calculation of no. of mol of A-:

Q: a) Calculate the pH of a buffer system made up of 0.25 M C6H5COOH and 0.35 M C6H5C00ONA. b)What is…

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Q: 17.28 (a) use H-H equation

A: The molar concentration of 0.15 mol propanoic acid in 1.20 L is calculated as follows-

Q: A buffer is made up of 15.0 mL of 0.1 M HC2H3O2 and 15.0 mL of 0.1 M N a C2H3O2. The pH of the…

A: The term pKa used for acids and it reflects any acid's strength how much strong the acid is. The…

Q: . You are running an experiment and need to keep your solution within a certain pH range:  3.5 +/-…

A: Hello. Since your question has multiple parts, we will solve first question for you. If you want…

Q: Determine the pH at the point in the titration of 40.0 mL of 0.200 M H2NNH2 with 0.100M HNO3 after…

A: The pH of the solution is the power of protons in the solution. While pOH is related to the basicity…

Q: 1. 35.0 mL 0.175 M HBr sample is titrated with 0.200 M KOH. a) Initial pH

A: A scale of measurement of the acidity or basicity of a given compound is called pH. Lower the pH…

Q: Q1: Consider the titratior 25.0 mL of HCI (0.0782 M) with 0.0501 M of triethylamine (CH,CH),- NH, ?…

A: The question is based on the concept of titrations.   we are titrating  a strong hydrochloric acid…

Q: Consider the following reaction:  CH3COOH(aq) + OH-(aq) ------------> CH3COO-(aq)+H2O (l) How much…

A: Buffer problems are best solved using the Henderson-Hasselbalch equation:pH = pKa + log ([A-] /…

Q: The pK, value for HCN is 9.40. Would a buffer prepared from HCN and KCN with a pH of l1.4 be…

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Q: Stårting with 0.750L of a buffer solution containing 0.35 M benzoic acid (CH5COOH) and 0.30 M sodium…

A: Concentration of HCl added in the solution = Moles of HCl/Volume = 0.12mol/0.750L = 0.16M From the…

Q: What quantity (moles) of  must be added to 1.0 L of 1.7 M  to produce a solution buffered at pH =…

A: Given that, the concentration of the weak acid is 1.7 M and the volume is 1 L. The Ka is 1.8×10-5.…

Q: calculated after 12.5 mL of titrant is added? Group of answer choices The pH is based on the…

A: reaction after adding HCl, F- + H+ ---> HF  Mmol of F- = M × V . = 25 ×0.1 = 2.5 mmol Mmol of…

Q: Determine the volumes of 0.12 M CH3COOH and 0.15 M CH3COONa required to prepare 10 mL of the…

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Q: 3O+  + HCO- What will the pH of the carbonic-acid-bicarbonate buffer be following a 1/10 dilution?…

A: Buffer solutions are prepared to provide resistance to any kind of pH change. The pH changes occur…

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.