The pKa of butyric acid (HBut) is 4.7. Calculate the Kb for butyrate ion (But−).

Q: Arsenic acid, H3AsO4, has a pkai = 2.22. What is the value of Kal?

A: pKa = 2.22 (given) Since we know that, pKa = – log Ka So, Ka = 10-pKa  = 10-2.22   = 6.025 × 10-3 ≈…

Q: Calculate the Kb for the weak acid of Ka = 3.1 x 10-8. Calculate Ka for the weak base of Kb = 6.5 x…

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Q: The AIDS drug zalcitabine (also known as ddC) is a weak base with a pKb of 9.8. What percentage of…

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Q: A solution of 0.20 M hydrazoic acid has a pH of 3.21. What is the Ka of hydrazoic acid?

A: We have to calculate the Ka of acid.

Q: 9. If only 1.6% of 0.20 M solution of a weak base was ionized. Calculate its Kb value? *

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Q: Calculate the pH at 25 ° C of a 0.0033 M solution of a weak base with a Kb of 2.5 × 10−9 . pH =

A: Given:Kb = 2.5×10−9.Weak base [BOH] = 0.0033 M.

Q: 2. Lakes that have been acidified by acid rain can be neutralized by liming, the addition of…

A: The concentration of hydronium ions of the lake, pH=-log[H3O+] Given, pH is 5.5.…

Q: Calculate the percent ionization of formic acid (HCOOH) in a solution that is 0.311 M in formic acid…

A: According to Henderson-Hasselbalch equation Since formic acid concentration given = [HA] = 0.311 M…

Q: A 0.107 M solution of Providenol, a weak acid, has a measured pH of 4.32. Determine the pKa of…

A: The equilibrium constant depicting dissolution of either weak acids/base is known as dissociation…

Q: The concentration of carbonic acid, H2CO3, in a typical carbonated drink is approximately 7.0 x 10-2…

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Q: Calculate the pH at 25]°C of a 0.14 M solution of a weak base with a Kb of 3.8 ×10−11.

A: Considering the dissociation of a weak base,

Q: The pH at the equivalence point was 10.99. Find pKa for HA.

A: In chemistry various types of titrations take place. Some time there is titration of strong acid and…

Q: A 0.3 M solution of a weak acid, HA, has an [H30*] of 0.002 M. What is the Ka of the acid, HA?…

A: Dissociation of acid is HA + H2O --------> H3O+ + A- the relation between concentration of H+ or…

Q: How many grams of NaOH (MW 40.00 g/mole) should be added

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Q: You make a solution of a weak acid with a pH of 3.75 and the pKa is 5.42 1. Is the solution acidic…

A: Acid are the solution which donate H+ ion in their aqueous solution and have pH greater than zero…

Q: A solution containing 0.200 M for ion X- and 0.180 M  HX has a pH of 9.22. What is the pKa of HX?

A: Since the solution is having X- i.e conjugate base of HX and acid HX. Hence the solution is a buffer…

Q: Calculate the pH at 25 ° C of a 0.18 M solution of a weak base with a Kb of 2.7 × 10−11.

A: Given: Kb = 2.7×10−11 Weak base [BOH] = 0.18 M

Q: The weak acid HA is determined to be 8.32% dissociated when the initial concentration of HA is…

A: Initial concentration of HA = 0.0300 M Degree of dissociation = α = 8.32 % = 0.0832

Q: a pka value of 9 has more charged or more neutral molecules in a solution with the pH value:

A: If a base receives one proton, then the formed species is a conjugate acid whereas an acid lose one…

Q: What is the pH of a solution that is prepared by dissolving 7.50 grams of pyruvic acid (formula…

A: Calculation for finding out the molarity of pyruvic acid:

Q: A 0.050 M solution of sodium meta-toluate (NaTol) has a pH of 8.47. a. What is the Kb of…

A: 0.050M sodium meta-toluate has a pH of 8.47. Kb and Ka is to be found. Sodium meta-toluate is a salt…

Q: A 0.119 M solution of Covidenol, a weak acid, has a measured pH of 3.45. Determine the pka of…

A: For weak acid  PH= (1/2)(pka-log c)

Q: During strenuous exercise, lactic acid builds up in muscle tissues.  In a 1.00 M aqueous solution,…

A: Refer to the attached picture for full answer.

Q: Ka for nitrouse acid ,HNO2 is 4.5 x10^-4.what is the value of Kb for the nitrite ion NO2^-

A: Conjugate acid-base pair is a pair which differ by only one proton.

Q: A beaker contains a total concentration of 0.54 molar of weak acetic acid with pKa = 2.64 and pH %D…

A: Given that, a beaker contains a total concentration of 0.54 molar of weak acetic acid. The pKa =…

Q: Use the Kb for the nitrite ion, NO2−, to calculate the Ka for its conjugate acid.

A: Ka x Kb = Kw =  1 x 10-14   Conjugate acid of NO2− is HNO2

Q: the pH of a 0.1 M KNO3 solution

A: Potassium nitrate (KNO3) is a salt of strong acid(nitric acid;HNO3) and strong base(potassium…

Q: Calculate the final pH when 2.6 mmol NaOH is added to 1 mmole phosphoric acid, given pka1 = 2.1,…

A: Given, mol of NaOH = 2.6 mmol pKa1=2.1pKa2=7.2pKa3=12.4

Q: Anisic acid (Ka=3.38x10^-5) is found in anise seeds and is used as a favoring agent. For a 0.867 M…

A: From given concentration of anisic acid = 0.867 M  So from that  All given categories like  H+, OH-,…

Q: pH

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Q: The pKa of a weak acid (increases, decreases, is unaffected) if the equivalence point is increased…

A: Answer:- This question is answered by using the simple concept of titration of acid and base. The…

Q: 7. The ka for acetic acid is 1.0 x 10.5. Is acetic acid a weak or a strong acid?

A: Strong acids completely dissociate in aqueous solution (Ka > 1, pKa < 1).

Q: Common aspirin is acetylsalicylic acid, which has the structure shown below and a pka of 3.5.…

A: Given mass of aspirin = 6.5 × 102 mg = 650 mg  Mass of water = 8 ounces = 8 × 28.35 g  = 226.8 g…

Q: A 0.050 M monoprotic weak acid solution has a pH of 2.40. Calculate the pKa of the acid. Express…

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Q: Determine the pka of an acid whose concentration is 0.100M and pH is 2.86.

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Q: a 0.55 M solution of a monobasic compound B has a pH of 11.32, what is the Kb value of the base B

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Q: acid, Ka = 7. The value of Ka for acetylsalicylic acid (aspirin) is 3.00x10-4. What is the value of…

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Q: A1.12 M solution of a weak acid has a pH of 2.73. What is the pKa of the acid? Report your answer to…

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Q: What is the pH of 0.075 M methylammonium bromide, CH3NH3Br?  (Kb of CH3NH2 = 4.4 × 10−4.)

A: The value of Kb for the given weak base methylammonium bromide is = 4.4x10-4 The concentration of…

Q: the Kb of a weak base is 4.7E-9, what is the Ka of its conjugate acid? Do not include any units with…

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Q: A weak acid HA, has a pKa of 5.0. If 1.0 mol of this acid and 0.1 mol of NaOH were dissolved in one…

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Q: The Kb of a weak base, Z, is 3.75 x 10−12.  What is the Ka for its conjugate acid, HZ+?

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Q: In a solution with a pH of 7.0. What are the α1 and α0 values of the hypochlorous acid ? (For HOCl…

A: pH= -log [H+] [H+] = 10-7

Q: 1. How much base 0.1 M NaOH was required to neutralize lemon juice from our experiment part 1, and…

A: Solution :      pH       pH is a quantitative measure for the acidity or basicity of the solution.…

Q: A lake has a pH of 7.5 and a measured bicarbonate (HCO3-) concentration of 50 mg/L. What is the…

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Q: The pK, of a particular weak acid is 5.17. What is the pH of the weak acid solution when exactly…

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Q: A 0.250M solution of an unknown acid has a pH of 5.473. What is the Ka Answer: of this acid?

A: [H+] = (Ka × C)1/2

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.