Calculate the pKa of the weak acid HA, given that a solution of 0.65 M HA and 0.85 M NaA has a pH of 4.75

Q: A 0.045 0 M solution of HA has a pH of 2.78. Find pKa for HA.

A: Given, initial concentration of HA = 0.0450 M             pH = 2.78 We know that, pH can be…

Q: The pH of an aqueous solution of weak monoprotic acid is 3.15. What is the initial…

A: Value of pH is sued to measure acidity or basicity of a solution. Value of pH lies in the range from…

Q: For H2CO3, Ka1 = 4.3 × 10–7, Ka2 = 4.7 × 10–11. What is the pH of a 0.36 M solution of carbonic…

A: We have to predict the pH of 0.36 M of carbonic acid .

Q: Calculation of pH (SHOW CALCULATION FROM THE GRAPH IATTACH GRAPHI 2.Find out pH at equivalent to…

A: Plot of pH vs Volume of NaOH added

Q: A 0.495M solution of nitrous acid, HNO2, has a pH of 1.83. Calculate the value of Ka for nitrous…

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Q: A 11 mM solution of a compound with a pKa = 6.5(1L total) has a pH of 7.5.If a biochemist adds 9…

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Q: What is the pH of a 0.40 M solution of sodium nitrate, NaNO2 ? The pKa for nitrous acid (HNO2) is…

A: Base dissociation constant Kb is utilized to determine the basic nature of a solution. It refers to…

Q: Consider the acid HXOy where X is a halogen that is less electronegative than oxygen. Which of the…

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Q: What is the pH of a solution containing both 0.10 M CH₃COOH and 0.20 M CH₃COONa? The Ka of CH₃COOH…

A: We have to predict the pH of the given solution.

Q: What is the pH of a 0.232 M solution of ammonia, a weak base with a K of 1.7 x 10-5?

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Calculate the pH of a solution containing 0.1M NH,OH and 0.01M NH.CI, K = 1.76 x 10$. %3D

A: Given, [NH4OH] = 0.1 M [NH4Cl] = 0.01 M Kb = 1.76 × 10-5

Q: weak

A: We used the Hinderson equation for calculating the concentration of salt ( NaA ) and it's acid ( HA…

Q: 1. How many grams of Ca3(PO4)2 will be needed to prepare 500.0 mL of a 0.161-M solution of…

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Q: Calculate the pH of a solution containing 0.3 M HCOOH and 0.1 M HCOO (pKa of HCOOH = 3.76)

A: Concentration of HCOOH (Acid) = 0.3 M  Concentration of HCOO- (conjugate base of acid) =  0.1 M  pKa…

Q: A weak acid, HA, has a pKa of 4.838. If a solution of this acid has a pH of 4.675, what percentage…

A: Given:pKa = 4.838pH =4.675

Q: How does pKa relate to acid strength?

A: For any weak acid, let's say HA, pKa is the relationship between the dissociation constant of acid.…

Q: Oleic acid (which can be denoted as HOL), is a weak acid. Considering its sodium salt, sodium oleate…

A: We have to calculate the pKa of the HOL.

Q: What is the pH of a mixture of 0.042 M NaH2PO4 and 0.058 M Na2HPO4?

A: Given : Concentration of NaH2PO4 = 0.042 M Concentration of Na2HPO4 = 0.058 M

Q: Suppose 0.0013 mol HA and 0.0013 mol A− are present in 170. mL solution and the pH is 4.00. What is…

A: We have to calculate the acid dissociation constant value.

Q: What is the pH of a solution that is 0.063 M in HA and also 0.023 Min NaA? (Ka = 4.1 × 10- O. 5.46…

A: Given: The concentration of HA is 0.063 M The concentration of NaA is 0.023 M The Ka value is 4.1 x…

Q: Calculate the pH values of the following solutions: a) a 0.1 M solution of protonated methylamine…

A: Given data: Concentration of methylamine = 0.1M Concentration of HCOOH  = 0.3M Concentration of…

Q: 3. Calculate the pH of a solution containing 0.10 M H3BO3 and 0.18 M NaH2BO3 Ka = 5.81 X 10 10

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Q: At what pH is the concentration of a compound, with a pKa = 8.4, 100 times greater in its basic form…

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Q: Carbonic acid, H₂CO₃ is a diprotic acid with Ka1 = 4.3 × 10⁻⁷ and Ka2 = 5.6 × 10⁻¹¹. What is the pH…

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Q: this question. Calculate the pH of a solution that is prepared by dissolving 0.168 mol of…

A: The two given acids dissociate partially as- C6F5COOH→C6F5COO- + H+      Ka= 3.30×10-2HClO →H+ +…

Q: A weak acid solution with concentration 0.020 M has a pH of 3.7, what is the pKa of this acid?

A: Given pH = 3.7 Initial Concentration = 0.020 M

Q: Find the pH and the concentrations of H2SO3, HSO3, and SO23 in each of the following solutions:…

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Q: What is the pH of a 0.618 M carbonic acid (H2CO3) solution given Ka1=4.4×10−7 and Ka2=4.7×10−11?

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Q: Carbonic acid, H₂CO₃ is a diprotic acid with Ka1 = 4.3 × 10⁻⁷ and Ka2 = 5.6 × 10⁻¹¹. What is the pH…

A: The carbonic acid is a diprotic acid. The major release of hydrogen ions occurs in the primary…

Q: The pKa of a particular weak acid is 4.85. What is the pH of the weak acid solution when exactly…

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Q: Part II. Arrange the following compounds in order of increasing basicity. 7. NazO, Rb2O, K2O 8.…

A: Ans. Part II Arrangement of the given compounds in order of increasing basicity: (7)  Na2O <…

Q: What is the pH of a solution that is 0.05M in ethylamine and 0.08M in its chloride salt (pKa=10.8)

A: pH of a solution =?    [ C2H5NH2 ] = 0.05 M    [ C2H5NH3+ ] = 0.08 M Acid dissociation constant :…

Q: Phenoxide ion (C,HsO) is a weak base, with Kp = 7.70 x 10. Calculate the pH of a 0.50 M aqueous…

A: Given that  Kb = 7.70 × 10-5  Peroxide ion is a weak base

Q: A 0.500M solution of a weak acid has a pH of 2.251. a. What is the pKa of the weak acid?

A: Given data Concentration of weak acid : C = 0.500 M pH of solution = 2.251  We know that for a weak…

Q: At what pH is the concentration of a compound, with a pKa = 3.7, 10 times greater in its acidic form…

A: Given information: pKa = 3.7 [Acid] = 10[Base]

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 sodium salt of propanoic acid, NaCH3CH2CO2, is used as an antifungal agent by veterinarians.…

A: Given: The Kb for CH3CH2CO2- = 7.7 × 10-10 We have to calculate the concentrations of H3O+ and OH-,…

Q: Carbonic acid, H₂CO₃ is a diprotic acid with Ka1 = 4.3 × 10⁻⁷ and Ka2 = 5.6 × 10⁻¹¹. What is the pH…

A: Since the Ka1 of H2CO3 is >> Ka2 of H2CO3  Hence we can assume only the first dissociation of…

Q: A weak acid, HA, has a pKa of 4.268. If a solution of this acid has a pH of 4.853, what percentage…

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Q: Calculate the pH and pOH for the following: a. 10mg of cyanic acid (pKa=9.21) in 1L of water

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Q: Given that a weak acid has a pKa of 3.45, find the % ionization of a 0.345 M solution of weak acid.

A: Let the weak acid be HA,its concentration is 0.345,and degree of dissociation/degree of ionisation…

Q: A buffer solution is 0.402 M in NaH2PO4 and 0.318 M in Na2HPO4. If Ka for H2PO4- is 6.2 x 10 -8,…

A: The solution has NaH2PO4 which will dissociate completely into ions Na+ and H2PO4-  Hence…

Q: A 0.100 M solution of HOBr has a pH of 5.343. What is Ka for HOBr?

A: Ka is the dissociation constant of an acid. It measures the strength of an acid.

Q: Calculate the pKa of the weak acid HA, given that a solution that is 0.357 in HA and 1.24 in A- has…

A: Buffer solution is made of weak acid and it's conjugate base or weak base and it's conjugate acid.

Q: The pka of a particular weak acid is 4.85. What is the pH of the weak acid solution when exactly…

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Q: Given the following chemical reaction between a weak acid, HA, and water: НА(аg) Calculate the Ka of…

A: [HA] = 0.546 M  pH = 4.56  We need to determine value of Ka.

Q: Calculate the pH values of the following solutions: a. a 1.0 M solution of acetic acid (pKa = 4.76)…

A: From given data For part (a)                              pKa=4.76 [CH3COOH]=1.0 M For part (b)…

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.