Which solution has the least buffering capacity? Select an answer. a 0.125 M KHPO and 0.156 M KHPO b 0.238 M KHPO and 0.156 M KHPO c 0.648 M KHPO and 0.612 M KHPO d 0.049M KHPO and 0.056 M KHPO e They have the same capacity

Q: A 525-mL buffer solution is 0.367 M in acetic acid (CH3COOH) and 0.367 M in sodium acetate…

A: We have to calculate the initial pH and pH after adding given amount of acids and bases.

Q: buffer solution having a pH of 3.50? [K«(HF) = 7.1 x 10] (MN&F = 41.99 g/mol) A. 0.89 g В. 7.1 g C.…

A:

Q: What is the pH of a buffer solution made by adding 0.2 M of NaF to a 0.40 M solution of HF?  Assume…

A: Given data, Ka = 6.9 × 10-4  Concentration of salt (NaF), [NaF] = 0.2 M Concentration of acid (HF),…

Q: A buffer could be made with all the following except   1.0 M citric acid and 1.0 M sodium citrate…

A: A buffer solution is an aqueous solution having a mixture of a weak acid and its conjugate base, or…

Q: 100. mL of 0.150 M of weak HCI solution was titrated with a 0.300 M sodium hydroxide solution. What…

A: Volume of HCl = 100 ml = 0.100 L Molarity of HCl = 0.150 M Molarity of KOH = 0.300 M

Q: A buffer solution is 0.500 M in acetic acid and 0.500 M in sodium acetate. Its pH is 4.74. What is…

A: Buffer solution: The solution that resists the change in pH is known as a buffer solution. The…

Q: A chlorous acid buffer Containing 0.75 mol of A HClO₂(aq) and 0.75 mol of Nacio₂caq) in 1.00L has a…

A: we have to calculate pH of the buffer solution, after HCl is added

Q: What is the pH of a buffer made from 0.580 mol of CH₃NH₂ (Kb = 4.4 × 10⁻⁴) and 0.100 mol of CH₃NH₃I?

A: Given- Moles of CH3NH2=0.580mol Moles of CH3NH3I=0.100mol Kb=4.4×10-4

Q: A buffer solution that is 0.307 M in HF and 0.307 M in KF has a pH of 3.14 . Addition of which of…

A: Buffer capacity is the resistance in the change of the pH upon the addition of a small amount of…

Q: 1. Calculate the pH when 20.0 mL of 0.150 M KOH is mixed with 46.0 mL of 0.300 M HBrO (Ka = 2.5 ×…

A:

Q: Which of the following solutions will be the best buffer at a pH of 9.26? (Ka for HC2H3O2 is 1.8 x…

A: option d is correct.  Explanation: Given : pH = 9.26 Ka for acetic acid = 1.8 ×10-5 Kb for NH3 =…

Q: Which of the following buffer concentrations has the least capacity to resist pH change when added…

A: Buffer = Buffer are the solution that can resist pH change when small amount of an acid or base is…

Q: Which of the following buffers has the largest capacity if made in 1.0 L solutions? A) 0.300 mol HCN…

A: The ability of a solution to maintain the change in its pH is known as buffer capacity.

Q: Calculate the buffer capacity of a buffer solution prepared by mixing 0.215M sodium acetate and…

A: Van Slyke developed an equation for determining buffer capacity.  Buffer capacity is defined by the…

Q: What will be the pH of the solution prepared by dissolving 8.35 g of aniline hydrochloride (C6H5NH3…

A:

Q: Calculate the pH of the buffer that results from mixing 53.1 mL of a 0.322 M solution of HCHO2 and…

A:

Q: 400-mL buffer solution is 0.350 M in ammonia (NH3) and 0.350 M in ammonium chloride (NH4Cl).…

A: pH of buffer can be calculated by using Handerson equation. Pkb = -log10(1.76 × 10-5) = 4.75

Q: Which of the following buffer solutions has the highest buffer capacity A. 0.10 M NHz and 0.10 M…

A: An acid or a base is described as a weak acid or a weak base based on the amount of the dissociation…

Q: What is the pH of the solution after the addition of 5.00 mL of 0.0100 M HCl to 25.0 mL of a buffer…

A: Solution-   HCl is strong acid and will dissociate completely to give H+and Cl- Moles of HCl added…

Q: 4. The slightly soluble salt AB2 ionizes as shown. (1) AB, (s) = A²* (aq.) + 2B° (aq.) When a…

A: Note: As per company policy we are supposed to attempt first three subparts only. Please repost…

Q: A 100 mL sample of a 0.300 M solution of a weak monoprotic acid is titrated with 0.150 M KOH. After…

A: When a monoprotic weak acid is titrated with KOH. Then at certain range the solution behaves as a…

Q: The titration of 25.00 mL a 0.125 M HClO4 solution required 26.73 mL of KOH to reach the endpoint.…

A: = basicity of an acid = 1  = acidity of a base = 1  = concentration of  = 0.125 M  =…

Q: What is the pH at the equivalence point in the titration of a 24.1 mL sample of a 0.400 M aqueous…

A: Answer: Hypochlorous acid is a weak acid, that's why at equivalence point, we will be having a…

Q: A solution of 0.0490 M HCl is used to titrate 29.0 mL of an ammonia solution of unknown…

A: Solution-   At equivalent point- Millimoles of base= moillimoles of acid 29.0 × C…

Q: A 15.00 mL sample of aqueous carbonic acid solution of unknown concentration requires titration with…

A: Answer given as follows

Q: A 100.00 mL buffer is prepared by dissolving 1.22 grams benzoic acid (pKa = 4.20, Molar Mass, μ =…

A:

Q: Calculate the pH of a buffer solution prepared by mixing 75 ml of 1.0 M acetic acid (pKa = 4.76) and…

A: PH of an acid buffer can be calculated by henders son equationPH=Pha+logsaltacid

Q: Which of the following buffers has the greatest buffering capacity? Buffer A: Buffer B: Buffer C:…

A: The maximum buffer capacity condition is that the ratio of salt/ base should be unity  In other…

Q: A 25.5 mL aliquot of unknown HCl (aq) concentration was titrated with 0.113 M NaOH (aq). It took…

A: Neutralization reaction occurs when an acid completely reacts with a base to form a neutral salt and…

Q: A buffer could be made with all the following except a. 1.0 M citric acid and 1.0 M sodium citrate…

A: Given: A buffer could be made with all the following except.   What is buffer? A buffer solution is…

Q: A 1 liter solution contains 0.514 M hydrocyanic acid and 0.386 M potassium cyanide. What will the…

A: Explained as follows

Q: A 31.00 mL sample of an H2SO4 solution of unknown concentration is titrated with a 0.1372 M KOH…

A: Given that, Volume of H2SO4 solution = 31.00 mL = 0.031 L, concentration = M Volume of KOH solution=…

Q: What is the pH at the equivalence point in the titration of a 29.8 mL sample of a 0.371 M aqueous…

A: Calculation of no. of mol of acetic acid: n=Molarity×Volume=0.371 mol/L×29.8×10-3 L=0.011056 mol At…

Q: the reagent potassium phosphate tribasic trihydrate (K3PO4*3H2O) and 1.1M HCl and 1.1 M NaOH. you…

A: Given: The reagent potassium phosphate tribasic trihydrate (K3PO4*3H2O) and 1.1M HCl and 1.1 M NaOH.…

Q: 5 mL of 0.150 M ammonia (NH3) is titrated with 0.100 M hydrochloric acid (HCl). The Kb for ammonia…

A: In the given question we have find pH at equivalence point and after equivalence. equivalence point-…

Q: A student attempts to determine the buffer capacity of a solution by titrating 40.0 mL of solution…

A: Given: Volume of buffer solution = 40.0 mL = 0.040 L                                    (since 1 L =…

Q: contains 0.433 M hydrocyanic acid and 0.325 M potassium cyanide. Addition of 0.162 moles of…

A: Buffet is solution which resist pH Change on addition of small amount of strong acid or base. Buffer…

Q: Which of the following has the highest pOH ?   0.2 M NaOH…

A: The concentration of the hydroxide ion in the solution can be defined by the pOH of the solution.…

Q: 1) You want to prepare a buffer with a pH of 3.6. Which weak acid should you use and what else…

A: 1. To prepare a buffer of pH 3.6, the superior choice is HNO2 acid. Because HNO2 has pKa value =…

Q: Buffer intensity is the resistance of a solution to a pH change when a strong acid or base is added.…

A: Buffer intensity is the resistance of a solution to a pH change when a strong acid or base is added…

Q: A buffer solution contains 0.36 M sodium acetate (CH3COONa) and 0.45 M acetic acid (CH3COOH), pKa =…

A:

Q: Which of the following solutions is a buffer system? 0.10 M HI and 0.10 M K 0.10 M HF and 0.10 M KI…

A: A buffer solution is a solution that resists change in pH  even upon the addition of small amount of…

Q: A 200.0 mL sample of 0.216 M strong acid is titrated with 0.170 M strong base.  Determine the pH of…

A: Given, A 200.0 mL sample of 0.216 M strong acid is titratedwith 0.170 M strong base.we are asked to…

Q: A 25.0 mL sample of an acetic acid solution is titrated with a 0.175 M NaOH solution. The…

A: The titration of acetic acid solution by NaOH solution is a neutralization reaction. It takes place…

Q: Which of the following pairs will not form a buffer when mixed together in an aqueous solution?   a.…

A: Buffer solution can be defined as the solution which resist the change of pH on adding small amount…

Q: What is the least volume of 3.10 M HCl(aq) that will exceed the buffer capacity of 1.00 L of a…

A: Buffer capacity is defined as the ability of the solution to resist the rapid change in pH by either…

Q: A buffer solution after the addition of 20.0 mL of 1.00 M NaOH solution to 500.0 mL of a buffer…

A: The concentration of acetic acid can be calculated as given below.

Q: What concentration ratio of NH3 to NH4Cl is necessary to get a buffer solution with a pOH of 5.3? Kb…

A:

Q: In order to prepare 100 mL of a 0.50 M sodium phosphate buffer, pH 7.7, how many grams of sodium…

A: Given: pH of solution = 7.7  Concentration of buffer = 0.50 M Volume of buffer solution = 100 mL =…

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.