How will you prepare 500 ml of 0.750 M citrate buffer with pH of 4.25 from solid citric acid (C6H8O7) and solid sodium citrate (Na3C6H5O7).The Ka of citric acid is 7.40 x 10-4

Q: What is the molar solubility of Agl Ksp= 8.3 x 10^-17 in the presence of 0.05 M KNO3? A. 1.29x10^-16…

A: Molarity of KNO3 = 0.05M KNO3 is a strong electrolyte and dissociates completely to furnish ions.…

Q: 140 Assume that 30.0 mL of a 0.10 M solution of a weak base B that accepts one proton is titrated…

A: (a) The molarity of weak base B and strong acid HA is 0.10 M. The volume of weak base used is 30.0…

Q: How would prepare 750ml of 0.1M NaCl, 0.5M Tris-HCl solution given that you have 5M NaCl and 1M…

A: Molarity is defined as the moles of solute present per liter of solution. For example: 5 M NaCl…

Q: Assuming the Ka is 2.37 x 10-5 for acetic acid, calculate the pH at the half equivalence point for a…

A: Acetic acid is a weak acid while NaOH is a strong base. So the titration of acidic acid with NaOH is…

Q: A lactic acid/sodium lactate (HC3H5O3/NAC3H5O3) buffer is prepared to 0.104 mol L-1 HC3H5O3 and…

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Q: Find the pH of a buffer that consists of 1.3 M sodium phenolate (C6H5ONa) and 1.2 M phenol (C6H5OH)…

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Q: he Ka of Benzoic acid (C6H5COOH) is 6.3 x 10-5. A 0.72 M C6H5COOH of 40.0 mL is titrated with 0.48 M…

A: Answer - The correct option is (c) The answer for (1) is 30.0 ml. The answer for (2) is 60.0 ml.…

Q: A flask contains 50 mL of a buffer that is 0.10M in acetic acid and 0.20 M in acetate ion. What will…

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Q: Suppose you wanted to make a buffer of exactly pHpH 7.00 using KH2PO4KH2PO4 and Na2HPO4Na2HPO4. If…

A: Henderson – Hasselbalch equation can be used here, i.e pH=pKₐ+log₁₀([A⁻]/[HA])

Q: Consider the titration of a 50.00 mL of 0.060 M Methanoic acid (HCOOH) with a 0.120 M sodium…

A: Salts generated while neutralization of weak acid with strong base possess basic character and…

Q: Assuming that Ka is 1.85 x 10-5 for acetic acid, calculate the pH at one-half the equivalence point…

A: The question is based on the concept of titrations. we have been given a weak acid and a strong…

Q: 3.  What is the pH of a buffer made by mixing 1.00 L of 0.020 M benzoic acid, HC7H5O2, with 3.00 L…

A: Given, the molarity of benzoic acid = 0.020 MMolarity of sodium benzoate = 0.060 MThe total volume…

Q: A 44.20 mL sample of phenol (Ka=1.60x10-10) analyte with a concentration of 0.113 mol L-1 is…

A: We have to calculate the pH at equivalence point.

Q: 15.0 mL of a buffer is made by mixing 10.0 mL of 0.10 M HF and 5.0 mL of 0.10 M NaOH solution. What…

A: Number of moles of HF and NaOH is calculated as follows, 1 mL = 0.001 L

Q: You are given 100.0 mL of the following buffer:  0.010 M HC2H3O2 and 0.010 M NaC2H3O2.  What is the…

A: Given, HC2H3O2=0.010 M ; NaC2H3O2 =0.010 MKa=1.7×10-5we are asked to calculate the effective pH…

Q: If you add 5.0 mL of 0.20 M HCI to 25 mL lactic acid/lactate buffer that is 0.10 M lactic acid and…

A: The pH of a buffer solution is determined by Henderson equation…

Q: 1.2 (i) pH Volume (mL) of 0.1 M NaOH m Above is the titration curve of a weak acid (200 mM acetic…

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Q: What ratio of NaCN to HCN is needed to prepare a pH 10.00 buffer? (Ka of HCN is 4.9 x 10-10)

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Q: How much solid sodium acetate (CH3COONa) is needed to prepare a buffer solution at ph 5 if you have…

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Q: What volume of 0.110 M Hydrochloric acid needs to be added to 30 mL of 0.100 M ammonia to make a…

A: We know the Henderson-Hasselback equation is, pH=pKa +salt/acid Given Value;   The concentration of…

Q: Pls help ASAP.

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Q: 1.0mL of 6.0M HCl is added to 100mL of a buffer that contains equal moles of acetic acid (CH3COOH,…

A: Initial pH of the buffer containing equal moles of acetic acid and sodium acetate can be given as:…

Q: You are asked to prepare a buffer with a pH = 3.00. Starting with 1.25 L of 0.80 M HF, how many…

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Q: (3) How will you prepare 500 ml of 0.750 M citrate buffer with pH of 4.25 from solid citric acid…

A: Molarity of buffer to be prepared [AH] = 0.750 M Volume of buffer solution = 500 ml pH of buffer…

Q: 15.0 mL of a buffer is made by mixing 10.0 mL of 0.10 M HF and 5.0 mL of 0.10 M NaOH solution. What…

A: The chemical reaction is: HF + NaOH → NaF + H2O Now, Moles = Concentration x volume  Millimoles of…

Q: 1.2 (i) pH y Volume (mL) of 0.1 M NaOH m n Above is the titration curve of a weak acid (200 mM…

A: Here weak acid, acetic acid (CH3COOH) is titrated with a strong base, NaOH.  The balanced equation…

Q: You are making a buffer solution in the lab by combining the weak acid H2PO4- with its conjugate…

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Q: What is the pH of a buffer prepared by adding 0.506 mol of the weak acid HA to 0.507 mol of NaA in…

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Q: What is the pH of a buffer that contains 0.250 mol of CH3NH2 and 0.450 mole of CH3NH3CI? Kb for…

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Q: 15.0 mL of a buffer is made by mixing 10.0 mL of 0.10 M HF and 5.0 mL of 0.10 M NaOH solution. What…

A: Number of moles of HF and NaOH is calculated as follows, 1 mL = 0.001 L

Q: If you have 0.20 M acetic acid and 0.20 M sodium acetate, how can you make a buffer with pH about…

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Q: How will you prepare 500 ml of 0.750 M citrate buffer with a pH of 4.25 from solid citric acid…

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Q: What ratio of CH3NH2 to CH3NH;* is needed to prepare a pH 10.20 buffer? (Kb for CH;NH2 is 4.4 ×…

A: The pH of a buffer solution is calculated using the Henderson Hasselbalsch equation as written…

Q: Describe how you would prepare a 100.0 mL buffer solution with a pH of 4.24 and an acetic acid…

A: Given data : For preparing  100 mL buffer solution with a pH =4.24 An acetic acid concentration =…

Q: Calculate the pH of a buffer obtained by mixing 125 mL of 0.10 M NH3 with 250 mL of 0.12 M NH4Cl. Kb…

A: pKb of the buffer solution has to be determined for calculating the pOH of the solution.

Q: 6. What is the pH of a mixture of 5 ml of 0.1 mol/litre sodium acetate and 4 ml of 0.1 mol/litre…

A: Solution: In this problem we will calculate pH using henderson equation.

Q: How many mL of 1.0 M NaOH must be added to 100. mL of 0.050 M HC2H3O2 to make a buffer with a pH =…

A: We have given that pH = 5.0 Ka = 1.8×10-5 Pka = -log(1.8×10-5) = 4.74 Concentration of Acetic Acid =…

Q: Maria titrated 40.00 mL of 0.50 M lactic acid with 0.25 M NaOH. What is the pH of the initial acid…

A: we have to calculate the initial pH of solution

Q: Calculate the pH change that takes place when a 150-mL portion of a) 0.0800 M NaOH and b) 0.0800 M…

A: Solution - ∆pH by adding NaOH = 0.05 ∆pH by adding HCl = 0.04 Buffer capacity ( NaOH ) = 0.48…

Q: Which of the following statements is true about a 1-L buffer solution prepared by mixing 1.13 mol…

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Q: What mass (in g) of ammonium chloride (NH4Cl) should be added to 2.60 L of a 0.155 M NH3 to obtain a…

A: Buffer solution is made of weak acid or base and their corresponding conjugate base or acid…

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

A: During titration, the point at which the moles of added titrant becomes equivalent to moles of that…

Q: How many grams of solid calcium cyanide, Ca(CN)₂ must be added to 200.0 ml of 0.370M hydrocyanic…

A: Molarity of HCN = 0.370 M pH = 9.20

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: 1. A buffer is prepared containing 1.00 molar Acetic Acid and 1.00 molar Sodium Acetate. What is its…

A: A buffer solution is made by the mixture of a weak acid with its conjugate base or by the mixture of…

Q: What is the approximate equivalence point of a weak acid-strong base titration of 25 mL aqueous…

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Q: What is the pH of a buffer solution made by adding 0.41 g of NaC2H3O2 to 100. mL of 0.10 M HC2H302?…

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Q: What is the pH of a buffer that consists of 0.412 M methylamine CH3NH2 and 0.219 M methylammonium…

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Q: A certain weak acid, HA, with a Ka value of 5.61 x 10-6 is titrated with NaOH (a) A solution is…

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