What is the buffering capacity of a 0.25M solution of Tris at pH=7.0? Note: the pKa=8.3 and the reaction is as follows: Tris-H+   + H20 <<<>>> Tris + H3O+

Q: wing mixtures has the highest buffering cap 2-10.90 M PO43- 2-10.10 M PO43- e the same buffer…

A: Buffer solution is the mixture of weak Acid/base with its conjugate base/acid. Buffer which have…

Q: n determination of mixed alkali, does adding H2O to the analyte can afect the process of titration?

A: Titration is an analytical method to determine the concentration of an analyte.

Q: a. What quantity (moles) of NaOH must be added to 1.0L of 2.0 M HC, H3O2 to produce a solution…

A: a. In addition to base (NaOH) with a weak acid (CH3COOH), the following reaction is observed as-…

Q: Calculate the solubility of Ag2PO4 in solution buffered to pH = 9

A: Since you have posted a multiple question, we will solve first one for you. To get remaining…

Q: a) 0.132g of a pure carboxylic acid (R-COOH) was dissolved in 25.00mL of water and titrated with…

A: (a) The number of moles of NaOH (n) is calculated using equation (1) in which C is the concentration…

Q: 5) The oxides and hydroxides of gallium exhibit both acidic and basic behaviors B) What is pCa for a…

A: Gallium metal is stable in dry air. It gradually oxidizes in moist air to form a protective film…

Q: Concentration Buffer solution pka Desired ph 1 0.010 M Phosphate 7.21 8.0 2 0.50 M…

A: Buffer capacity can be calculated as follows,   As desired pH is greater than pKa value, than…

Q: 1.Calculate the change in ph when 5ml of 1M HCl solution is added to 1L of 100mM Tris solution at ph…

A:

Q: Calculate the pH of the solution after the addition of each of the given amounts of 0.0651 M HNO3 to…

A: The balanced equation is   C2H5N + HNO3 -------&gt; C2H5NH+NO3–   Number of moles of C2H5N = M*V =…

Q: EDTA is a hexaprotic system with the pK, values: pKal = 0.00, pK2 = 1.50, pK3 = 2.00, pK4 = 2.69,…

A:

Q: Calculate the molar solubility of Ni(OH)2 (Ksp =  2.0 × 10-15) in a solution which is buffered at pH…

A: Ksp of Ni(OH)2 = 2.0×10-15 pH = 9.75  Using relation:  pH + pOH = 14 pOH = 14 - pH = 14 - 9.75 =…

Q: The following is list of weak acids and their pka values weak acid „pKa benzoic acid 4.20 hydrogen…

A: The acid data given is,

Q: The normal pH of blood is 7.40 6 0.05 and is controlled in part by the H2CO3/HCO3- buffer system.(a)…

A: Given: The pH of the blood= 7.20 The Ka for the carbonic acid=4.5 * 10-7.

Q: what is the ph of a buffered sol'n having a 1:20 H2CO3  & HCO3-  w/ 0.1 M concentration and…

A:

Q: How would you prepare a benzoic acid/benzoate buffer with a pH of 4.25, starting with 5.0L of .050M…

A: Given C6H5COOH  + NaOH⇔ C6H5COO-Na+ + H2O+pH of buffer =4.25Volume of buffer solution = 5.0…

Q: A litre of solution containing 0 1 mole of CH3COOH and 0.1 mole of CH3COONa provide a buffer of PH…

A: Given , Moles of CH3COOH = 0.1 mol Moles of CH3COONa = 0.1 mol pH of the buffer = 4.74 Moles of NaOH…

Q: The base ephedrine has a pKa value of 9.6. Calculate the theoretical end point pH when a 0.1 M…

A: Ephedrine, the organic molecule used in the prevention of low blood pressure and asthma. The…

Q: The molar solubility of sulfathiazole (weak acid) in water is about 0.001 M. a. What is the lowest…

A: Given: pKa of sulfathiazole = 7.2 Molar solubility of sulfathiazole = 0.001 M

Q: How many equivalents of strong acid are required to produce a good buffer (maximum buffering…

A:

Q: 1. Recall our titration of morpholine with HCI. [50.0 mL of 0.0200 M B = 1.00 mmol B with 0.100 M…

A: Given data: pKa = 8.492 Formula used:  pH=pKa+log[base][salt]

Q: 4. The molar absorptivities of the indicator weak acid HIn (K_{a} = 1.42 * 10 ^ - 5) and its…

A:

Q: Given that pKb for iodate ion (IO-3) is 13.83, find the quotient [HIO3]/[IO-3] in a solution of…

A: For a weak base, pH can be calculated as: pOH=pKb+logHIO3IO3-

Q: Which of the following statements is true concerning a 0.50 M hydrozine N2H4 solution of 30.0 ml…

A: When there is no HCl solution, then the solution contain only N2H4  solution. By addition of HCl,…

Q: Which of the following mixtures has the highest buffering capacity? OA0.90 M HPO42-/0.90 M PO43- OB.…

A:

Q: Tris(hydroxymethyl)aminomethane [(HOCH,)3CNH, Tris or THAM] is a weak base frequently used to…

A: It is an example of a basic buffer solution. Molar mass of THAM is 121 g/mol

Q: 3.Tris(hydroxymethyl)aminomethane [(HOCH2)3CNH2-Tris or THAM] is a weak base frequently used to…

A: Given: Kb=1.2×10-6pKb= 5.92pKa=8.08 Volume of HCl= 100mL Concentration of HCl= 0.50M pH of buffer=…

Q: At room temperature, how would you expect the Kof AgCl in deionized water to compare to the K.of…

A: Answer: Solubility equilibrium AgCl is shown below: AgCl(s)↔Ag+(aq)+Cl-(aq)

Q: Iminodiacetic acid (IDA) is often used in ion exchange resins as a way to remove heavy metals from…

A:

Q: What is the molar solubility of Ag2CO3 in an aqueous solution that is buffered to a pH of 2.37?…

A: Given: pH = 2.37  Ksp for Ag2CO3 = 8.1 x 10-12 K1 H2CO3 = 4.45x10-7 K2 for HCO3- = 4.69x10-11 Kw =…

Q: complexometric titrant, at what pH value/s does Y4- become a major component of solutions? -At pH 1…

A: pH of solution is defined as negative logarithm of hydrogen ions present in the solution.

Q: A student needs to prepare a buffer solution with a pH of 5.26. Assuming a pKa of 4.73, how many mL…

A: A buffer solution is the one which is formed by mixing “a weak acid with the solution of the salt of…

Q: Given that the Kf for [Ni(H2O)5(NH3)]2+ is 501 and Ka for NH4+ is 2.0 x 10-5, what is the…

A: Given data, Ka for NH4+=2.0×10-5Kf for [Ni(H2O)5(NH3)]2+=501

Q: Iminodiacetic acid (IDA) is often used in ion exchange resins as a way to remove heavy metals from…

A: Solution - ɑA2- = 4.6 × 10-3 Kf =[Ni A22-] /[Ni 2+][ɑ A2-]2 C 2IDAA [Ni A22-] /[Ni 2+] C 2IDAA =…

Q: 3. The maximum buffering capacity is nearest to the pka of the buffer. Explain why?

A:

Q: Calculate the pH of a buffer solution containing 10.0 cm³ of 0.100 mol dm-³ NaOH and 20.0 cm³ of…

A: 1 dm^3 = litre  1 cm^3 = milli litre  Millimoles = molarity (mol/L)* volume (in ml)

Q: The pKa's of H3PO4 are 2.0, 7.0, and 12.5. Assuming you have the sodium salts of all of the ionic…

A:

Q: concentrations of all species present in a solution of: 1.) 0.35 M CaF in H2O 2.) saturated PbSO4…

A: 1) CaF2 is highly insoluble in water. 0.35 M means 0.35 moles present in 1 lit solution. But since…

Q: Calculate gram quantity of Tris and the volume of HCl to prepare 100mL of 1 M Tris Buffer at pH 7.5.…

A:

Q: A buffer solution of 0.1 M concentration with a buffering zone of 3.74-5.74 pH value , specify what…

A: The considered buffer solution is 0.1M in concentration. The buffering zone is mentioned to range…

Q: Phenol red is a common acid-base indicator. It has a pKa equal to 8.000. Its undissociated form is…

A: Solution a)

Q: You will be handling cells that are viable at pH 5.5. Which of the following buffer systems should…

A: Given options are : A. CH3COOH - CH3COO- , Ka of CH3COOH = 1.8 x 10-5 B. NH3 - NH4+ , Kb of NH3 =…

Q: The value of Ksp for Mg3(AsO4)2 is 2.1 x 10-20. TheAsO43 - ion is derived from the weak acid H3AsO4…

A: (a) Mola solubility of Mg3(AsO4)2 in water;  Ksp for Mg3(AsO4)2 =2.1 x 1020. Mg3(AsO4)2    ⇋  3Mg2+…

Q: Explain briefly What would happen to the total hardness if the solution was buffered to pH 13.00?

A: As per the rules, only the first question can be answered.

Q: 1. A buffer solution made from HClO and KClO has a pH of 7.79 . If pKa for HClO is 7.46 , what is…

A:

Q: Given that the Kf for [Ni(H2O)5(NH3)]2+ is 501 and Ka for NH4+ is 2.0 x 10-5, what is the…

A:

Q: 11.(a) 10.06 cm3 of the stock 0.100 mol dm–3 solution of NaOH was required to fully neutralise 49.5…

A:

Q: 1. Tris(hydroxymethyl)aminomethane abbreviated as Tris or TRIZMA is frequently used to make buffers…

A: Given that : Molar mass of Tris(hydroxymethyl)aminomethane  = 121.1 g/mol pH = 10.5 The pKa of…

Q: What weight of Na2HPO4 and H2PO4 would be required to prepare 200mL of a buffer solution of pH 7.40…

A: Given data,   Na2HPO4 and H2PO4  prepared 200mL of a buffer solution of pH 7.40  Ionic strength =…

Q: 3. A solution is prepared by mixing 1.00 mmol of a weak acid (HA, pK2 = 6.44) with an unknown amount…

A: To find the total absorbance, A of a solution containing weak acid, HA and its conjugate base, A-,…