Answered: Calculate the pH of a 0.10 mol/L…

Calculate the pH of a 0.10 mol/L solution of ascorbic acid, H2C6H6O6(aq) and the equilibrium concentration of H2C6H6O6, HC6H6O6-(aq) and C6H6O62-(aq). Ascorbic acid is a polyprotic acid.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter16: Applications Of Neutralization Titrations

Section: Chapter Questions

Problem 16.20QAP

See similar textbooks

Related questions

Q: Phosphoric acid, H3PO4, is a triprotic acid with the following acid-ionization constants at 25°C:…

A: The chemical equation can be written as: The value of Kb can be calculated as:

Q: Hydroxychloroquine is a weak Bronsted base.

Q: Calculate the pH of a 1.22×10-2 M solution of the decongestant ephedrine hydrochloride if the pKb of…

A: The pH of the decongestant ephedrine hydrochloride can be calculated as

Q: The base protonation constant K, of lidocaine (CH, NONH) is 1.15 × 10 °. 8- 14 Calculate the pH of a…

A: Lidocaine being a weak base , dissociates partially in water. The dissociation is lidocaine in water…

Q: Consider the following data. For the acid: HA- Ka = 7.46⋅10−87.46⋅10-8 Calculate the Kb for A2-.…

A: Kb is the base dissociation constant. The base dissociation constant is a measure of how completely…

Q: 2. Joey was tasked to ensure that an enzyme responsible for keeping his species from extinction…

A: The solutions are given below -

Q: Values of K, for Some Common Weak Bases Name Formula Ammonia NH3 CH,NH, Methylamine Ethylamine…

Q: Calculate the pH of a 0.060 M solution of benzoic acid (C6H5CO2H) given that Ka = 6.3×10-5 for the…

A: Given: Molarity of benzoic acid is 0.060 M Ka is 6.3×10-5

Q: The pH of a 0.95M solution of benzoic acid (HC,H,Co,) is measured to be 2.11. Calculate the acid…

A: Given : Concentration of benzoic acid solution = 0.95 M pH of solution = 2.11 To calculate :-…

Q: A0.55 M solution of HX, a weak acid, is made. a) Write the reaction of the acid in water and…

A: Here the concentration of weak acid HX is 0.55M . Ka= 1.1×10^-2 . We have to determine conjugate…

Q: You have an organic acid, organic base, and a neutral organic compound all together in a solid…

A: Organic acids are generally in water. Hence we have to convert them to salt to make them soluble in…

Q: What is the pOH of a solution that has pH = (8.69x10^0)? Enter your answer in scientific notation…

Q: What fraction of ethane-1,2-dithiol is in the form H,A, HA and A? at a pH = 8.00?

Q: The acidity of solutions is generally measured in terms of pH. The pH of a solution is defined as…

Q: Consider the acid dissociation reaction for the weak acid HCN: HCN + H2O ⇌⇌ H3O+ + CN- a) Determine…

Q: : Determine the pH of a .25 M CH3NH3Cl solution (Ka for CH3NH3+ = 2.3*10^-11)(Show the dissociation…

A: To Calculate pH , we would need to draw an ICE table and calculate concentration of H3O+. From this…

Q: The pH of a 1.3 M solution of propanoic acid (HC,H,0,) is measured to be 2.37. Calculate the acid…

A: Since pH = -log[H+] Hence [H+] = 10-pH = 10-2.37 = 4.27 X 10-3 HC3H5O2 -----> H+ + C3H5O2-…

Q: The amino acid Valine (Val) will have the following proton transfer equilibria in water: H2Val =…

A: When pH>pKa, the molecule gets 100% deprotonated When pH < pKa , the molecule remains as 100%…

Q: Rewrite the Ka expressions as log expressions for the following chemical reactions H3PO4 (aq) +…

A: Given, H3PO4 (aq) + H2O (l) = H2PO4- (aq) + H3O+ (aq); Ka1 for phosphoric acid H2PO4-(aq) + H2O (l)…

Q: Part C. Classify whether the parameter shown in each item is describin Legend: C = Acid D=Base 43.…

A: pH = -log[H+] The range goes from 0 - 14 pH= 7 means neutral. pHs of less than 7 indicate acidity,…

Q: Calculate the PH of4.6M formic acid (CHOOH) solution given a ka value of 1.787*10^-4

Q: The pH of a 1.4M solution of propanoic acid (HC,H,O,) is measured to be 2.36. Calculate the acid…

A: Given :- pH = 2.36 concentration of HC3H5O2 = 1.4 M To calculate :- Ka

Q: Which of the following substances is likely to have the largest pK,? Select an answer and submit.…

Q: 2. Joey was tasked to ensure that an enzyme responsible for keeping his species from extinction…

Q: Calculate the pH at 25 °C of a 0.30M solution of potassium acetate (KCH,CO,). Note that acetic acid…

A: A strong base and weak acid react to form salt and water. The salt will be basic in nature and the…

Q: Water superheated under pressure to 200 °C and 750 atm has Kw = 1.5 × 10 11. What is [HO* and [OH ]…

A: The dissociation constant or ionization constant of water is an equilibrium constant and is…

Q: The pH of a 1.5 M solution of butanoic acid (HC,H,O2) is measured to be 2.32. Calculate the acid…

A: The dissociation of HC4H7O2 in aqueous solution can be expressed as,…

Q: [b] Derive the following question ;- pH = pK, + log [ Cs/C.1

Q: The acid dissociation constant K, of trimethylacetic acid (HC(CH;),CO2) is Calculate the pH of a 1.4…

Q: Calculate the pH and the equilibrium concentrations of HC6H6O6- and C6H6O62- in a 0.2410 M ascorbic…

Q: What is the correct relationship between Ka and Kb for a weak acid and its conjugate base…

A: We know, Ka × Kb = Kw Kw is the ionisation constant of water.

Q: 1) (HOCI/OCH) sytem at CIT = 103 M. Use the diagram to determine the following information. Label…

A: Given is the predominance diagram for hypochlorous acid/hypochlorite system.

Q: . Acid-base equilibria. Benzoic acid, C;H5O2 (or C6H5CO2H) ionizes in water as follows: CH$CO2H H20…

A: Given, concentration of benzoic acid, [C6H5CO2H] = 0.0100 M pH of the solution in water…

Q: Calculate the pH of a 0.060 M solution of benzoic acid (C6H5CO2H) given that Ka = 6.3×10-5 for the…

Q: You are given 0.7 M solution of the amino acid Lysine. pK1 (α-carboxyl group) = 2.18 pK2 (α- amino…

A: Answer: Lysine is a basic amino acid as it contains 2 amino groups and 1 carboxylic acid group.

Q: Aspirin is a weak acid with a pk, of 3.5. It is absorbed into the blood through the cells lining the…

A: Acid is a compound that donates proton and base is a compound that accepts proton. The strength of…

Q: Calculate the percent dissociation of the acid in each of the following solutions a. 0.50 M acetic…

Q: The pH of a 0.70 M solution of propanoic acid (HC,H,0,) is measured to be 2.51. Calculate the acid…

A: Given, pH = 2.51

Q: Calculate the fraction of the triprotic acid in each of its forms at pH 5.13.

Q: f the Kb of a weak base is 8.7E-9, what is the Ka of its conjugate acid?

A: Conjugate acid is defined as a chemical compound formed when an acid donates a proton (H+) to a…

Q: Calculate the pH at 25 °C of a 0.26M solution of potassium acetate (KCH₂CO₂). Note that acetic acid…

A: Concentration of KCH3CO2 = 0.26 M pKa of HCH3CO2 = 4.76

Q: Consider two acids: CH;CO,H (benzoic acid, pK, = 4.2) and CH,CO,H (acetic acid, pK,= 4.8). Which…

A: According to Bronsted-Lowry concept Acid is a substance which donates proton to other and forms its…

Q: Determine the pH of each of the following solutions. (a) 0.257 M hypobromous acid (weak acid with…

Q: Based on the graph, the retention of 4-aminobenzoic acid is not affected changes in mobile phase pH…

A: In the ph (2-9) , 4-aminobenzoic acid remains in zwitterionic form and have both +ve and -ve end…

Q: ΔG° for the dissociation of a weak monoprotic acid in water at 25°C is 28.6 kJ. What is the value of…

A: Given, ΔG0 = 28.6 kJ = 28600 J Temperature ( T ) = 250 C = ( 25 + 273 ) K = 298 K R =…

Q: 40 mg of sodium hydroxide is required to saponify Igm sample, this means that (MW of NaOH= 40…

A: Given data contains, Milligrams of sodium hydroxide is 40mg. The correct option has to be given.

Q: Calculate AG for the reaction 2 H2S(g) + SO2(g) 53 Sthombic(s) + 2 H2O(g) For the following…

Q: During a cardiac arrest a person stops breathing. One of the first things that a paramedic or the…

Q: The polyprotic acid, H3X, has acid dissociation constants Kaj = 5.6x10-1, Ka2 = 2.8×10-3, and Kaz =…

A: The dissociation constant of acid is expressed as Ka. It is the measure of acidity of a weak acid.…

Question

100%

Calculate the pH of a 0.10 mol/L solution of ascorbic acid, H2C6H6O6(aq) and the equilibrium concentration of H2C6H6O6, HC6H6O6-(aq) and C6H6O62-(aq). Ascorbic acid is a polyprotic acid. (8 marks) Please show your work.

Ka1 & 2 of Ascorbic Acid are as follows

Ka1 - 7.9 x 10^-5

Ka2 - 1.6 x 10^-12

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1 calculating equilibrium constant for net chemical equilibrium reaction

VIEW

Step 2 calculating pH of ascorbic acid

VIEW

Step 3 Calculating equilibrium concentrations

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

For the synthesis of maroon dye, Taylor needs to use a primary amine with a pH between 3.00 and 4.00 for optimum yield. In one of her trials, she dissolved 8.22 g of anilinium chloride, C6H5NH3Cl (MM = 129.58 g/mol) in distilled water to make 250.0 mL solution. Given that Kb of aniline (C6H5NH2) is 4.29 x 10-10, calculate the pH of the salt solution. Yes or No. Will Taylor obtain high yield of maroon using C6H5NH3Cl?'
Following titration analysis, a sample of a fruit juice was found to contain 8.9 mg cm-3 ascorbic acid. Given that the Mr value for ascorbic acid is 176.1 Da, calculate the value of the ascorbic acid concentration expressed in units of mmols dm-3 then enter it
Calculate the pH, pOH, and fraction of solute protonated or deprotonated in the following aqueous solutions: (a) 0.150 M CH3CH(OH)COOH(aq) (lactic acid), (b) 2.4 x 10-4 M CH3CH(OH)COOH(aq), (c) 0.25 M C6H5SO3H(aq) (benzenesulfonic acid). The appropriate values for pKa or pKb are given inthe table.
Which are stronger or weaker? Product formation or reactor? HSO-44 (aq) + CO32- à SO42-(aq) HCO3-(aq) HPO42-(aq) + H2O(b) à H2PO4-(aq) + OH-(aq) NH4+ + OH-(aq) à NH3(aq) + H2O(b) Relative -strength of acids + base - conjugate acid/base pairs - direction of Rx <--- or --->
This has got to be one of the worst explanations. No following at all, tried it on a problem 4 different times following the forumla and such and it sucked.
Determine the pH and concentration of all species at equilibrium for the basic 5-fluorouracil species (C4HFN2O22-). Justify the use of approximations if necessary.Provide the equation for the mass balance of this solution. C4HFN2O22-= 0.30 M
Atmospheric CO2 levels have risen by nearly 20% over the past 40 years from 315 ppm to 380 ppm. A. Given that the average pH of clean, unpolluted rain today is 5.4, determine the pH of unpolluted rain 40 years ago. Assume that carbonic acid (H2CO3) formed by the reaction of CO2 and water is the only factor influencing pH.CO2(g)+H2O(l)←→H2CO3(aq) Express your answer using one decimal place B. What volume of CO2 at 25 ∘C and 1.0 atm is dissolved in a 23.0-L bucket of today's rainwater? Express your answer using two significant figures.
MATLAB The acidity of solutions is generally measured in terms of pH. The pH of a solution is defined as theconcentration of hydronium ions. Create a table of conversions from concentration of hydronium ionto pH, spaced logarithmically from 0.001 to 0.1 mol/liter with 10 values. Assuming that you havenamed the concentration of hydronium ions H_conc, the syntax for calculating the negative of thelogarithm of the concentration (and thus the pH) is:pH = -log10 (H_conc)
please give calculation as well. Calculate the pH value of each of the solutions in tubes 1-9 using the Henderson-Hasselbalch equation (H-H eqn).Determine the pl of casein. Compare your experimental values with those found in the literature. Biomolecules. Thank you! The protein is casein.
Sketch a plot of the fraction of species, f, vs pH for Tyr. Show your calculations for several points on the plot. You want to calculate the fraction of the species for more than 3 of the points. pKa’s for Tyr is 2.24, 9.04, and 10.10.
Calculate the pH of a 2.00 M Na2CO3 given that the pKa’s of the first and second dissociation of H2CO3 (aq) acid are 6.37 and 10.32, respectively.
Write the dissociation equation for c2h2o4 (acid or base), write the expression for the constant equilibrium according to the law of mass action for c2h2o4, from pKa calculate the value of Ka and Kb for c2h2o4