A 100.0-mL aliquot of 0.100 M diprotic acid H₂A (pK₁ = 4.00, pK₂ = 8.00) was titrated with 1.00 M NaOH. At what volumes are the two equivalence points? Find the pH at the following volumes of base added (V) and sketch a graph of pH versus V: 0, 5.0, 10.0, 15.0, 20.0, and 22.0 mL.

A 100.0-mL aliquot of 0.100 M diprotic acid H₂A (pK₁ = 4.00, pK₂ = 8.00) was titrated with 1.00 M NaOH. At what volumes are the two equivalence points? Find the pH at the following volumes of base added (V) and sketch a graph of pH versus V: 0, 5.0, 10.0, 15.0, 20.0, and 22.0 mL.

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter14: Acid- Base Equilibria

Section: Chapter Questions

Problem 110CP: A 0.400-M solution of ammonia was titrated with hydrochloric acid to the equivalence point, where...

See similar textbooks

Related questions

Q: When the following equation is balanced properly under acidic conditions, what are the coefficients…

A: Overall Reaction: 8H2O(l)+7Fe(aq)2++2Cr(aq)3+→2CrO4(aq)2++7Fe(s)+16H(aq)+Cr3+ : 2Fe2+ :…

Q: Show the starting diene and dienophile you could use to prepare the following molecule: Diene +…

A: Given,The reaction is:

Q: For each of the following strong base solutions, determine [OH−],[H3O+][OH−],[H3O+], pHpH, and…

A: The objective of the question is to determine the concentration of hydroxide ions [OH-], hydronium…

Q: Name Turn in this page with your assignment. Where appropriate, you must show your work in order to…

A: 1) 2) C.3) 2.194) 4.6810 x 10-85) 2.8 x 10-56) 2.22Explanation:Step 1:Q1. B is the correct…

Q: Draw a step-wise mechanism for the following substitution reaction. Be sure to add lone pairs and…

Q: The major product for the following SN1 reaction is Br eCN ? Selected Answer: a mixture of…

A: This reaction is an example of SN1 reaction and in SN1 reaction always formation of major and…

Q: Calculate the pH for 0.45 M NaOCI. The K₂ value for HOCI is 3.0 x 10-8. K₁ for OCI = [OH-] = pH =

Q: The equilibrium constant is 0.0900 at 25°C for the reaction H2O (g) + Cl2O (g) = 2HOCl(g) For which…

A: For Set 2, the system is at equilibrium,Sets 1 and 3 are not at equilibrium and will shift to the…

Q: Give the IUPAC name for the following compound.

A: Organic compounds can be defined as compounds that contain carbon and hydrogen atoms. We have been…

Q: What are the major products of these reactions?

A: Answer below this question Explanation:

Q: My dear hand written solution is not allowed.

A: Esters are the compounds which involve the -COO- as a functional group.. Esters are formed by the…

Q: If 2.82 g of the triglyceride below is saponified with excess NaOH, calculate the theoretical yield…

A: Mass of triglyceride = 2.82 whereR=15 NaOH = excessCalculate the theoretical yield of soap.

Q: Please don't provide handwriting solutions....

A: The objective of this question is to calculate the initial pH of a buffer solution and the pH after…

Q: 4. Propose reagents for the synthesis of the target carboxylic acid from each of the indicated…

A: The objective of the question is to propose reagents for the synthesis of a carboxylic acid from the…

Q: 11. Which of the following molecules is a meso compound? CI All are meso None are meso A B C D E

A: Organic compounds can be defined as compounds that contain carbon and hydrogen atoms. We have been…

Q: 4) Determine the [H+] in a 0.755 M HCIO solution. The Ka of HCIO is 2.9 x 10-8. 2.9x 10-8 x2/0.155…

A: 4) 5)

Q: Br OH OH Movie:

A: Grignard Reaction: Firstly react bromobenzene with magnesium (Mg) metal in dry ether to form…

Q: A buffer contains significant amounts of acetic acid and sodium acetate. Enter the complete…

A: The objective of the question is to understand how a buffer solution, which contains significant…

Q: When the following equation is balanced properly under acidic conditions, what are the coefficients…

A: The objective of the question is to balance the given redox reaction under acidic conditions and…

Q: 1. Reagent(s) for [Select] 2. Reagent(s) for III [Select] To preview the image Click Here > Br NaOH…

A: The reagents are given and we can choose the best reagent for the conversion.

Q: 3. Draw two different mechanisms to account for the following transformation under acidic conditions…

A: In the given reaction, there is an aldehyde, a ketone, and a secondary amine group which react to…

Q: 9.44 What alkenes are formed when each alcohol is dehydrated with TSOH? Label the major product when…

A: All the major products has shown with proper mechanism. Please find the attachment…

Q: uestion 13 help

A: Lithium Aluminium Hydride (LAH) is stronger, non-selective reducing agent. It reduces most of the…

Q: Question 23 Identify the Major and ALL Minor product(s) that are expected for each of the following…

Q: Curved arrows are used to illustrate the flow of electrons. Using the provided starting structure,…

A: Alkyl magnesium halide is known as Grignard reagent and the reaction of Grignard reagent with ketone…

Q: Look at the cobalt equilibrium and decide which is pink (I or II) and which is blue? Co(H2O)62+ +…

A: The question is based on the concept of Le-chatlier principle.It States that when a system at…

Q: For each reaction, calculate ΔHrxn°, ΔSrxn°, and ΔGrxn° at 25 °C and state whether or not the…

A: a. 2CH4(g) C2H6(g) + H2(g) Horxn = Hoproducts – Horeactants = [-84.68 + 0] – [2…

Q: What mass of copper II hydroxide precipitate is produced by the double displacement reaction in a…

A: The objective of this question is to calculate the mass of copper II hydroxide precipitate produced…

Q: Problem 10.65 is intended for students who have already learned about spectroscopy in Chapters A-C.…

Q: How does the increase in the concentration of one reactant affect the rate of reaction if all other…

A: Explanation is given in below section.Explanation:Step 1:Assuming all other parameters stay…

Q: 3. Fill in the boxes to propose syntheses for the following molecules. OH

A: The question is based on the concept of organic synthesis.We need to synthesize the product using…

Q: STARTING AMOUNT How many moles of MnO3 are produced when 4.30 kg of oxygen gas completely reacts…

A: Approximately 89.6 moles of MnO are produced when 4.30 kg of oxygen gas…

Q: Determine [OH−] of a solution that is 0.180 M in F−. (Ka for HF is 6.8×10−4)

A: 1.6 * 10^ -6 MExplanation:use:Kb = Kw/KaKw is dissociation constant of water whose value is…

Q: Draw the major product of this reaction. Ignore inorganic byproducts and the phthalic acid…

A: The reaction given is,

Q: 3. Provide the product of the haloform reaction shown below, as well as a mechanism for its…

A: When treated with halogen (X2) in alkaline solution a carbonyl compound containing a keto-methyl or…

Q: Give the molecule that undergoes an intramolecular Diels- Alder cycloaddition to produce the given…

A: In Diels-Alder reaction a conjugated diene undergoes [4+2]cycloaddition reaction under thermal…

Q: Draw a structural formula for the major product of the reaction shown.

A: The required answer is given below Explanation:Step 1: Step 2: Step 3: Step 4:

Q: Draw the product of the reaction below. Ignore inorganic byproducts.

A: Glucose has five hydroxy groups and these hydroxy groups are methylated by reaction with methyl…

Q: What is the pH of a 0.950 M solution of Na2HPO4? H3PO4 is a weak polyprotic acid with Ka1 =…

A: The objective of this question is to calculate the pH of a 0.950 M solution of Na2HPO4. The compound…

Q: In the laboratory a student combines 29.9 mL of a 0.426 M ammonium phosphate solution with 17.6 mL…

Q: The equilibrium constant, Kc, for the following reaction is 1.20×10-2 at 500 K. PCl5(g) PCl3(g) +…

A: Answer:-This question is answered by using the simple concept of calculation of equilibrium…

Q: (a) 6. Shown below are incomplete acid-base reactions. The molecules playing the role of acid and…

A: HereAcid - compounds can donate H+ ion or lone pair acceptorBase- compounds can accept H+ ion or…

Q: Consider the following reaction: 2HI(g) = H2 (g) + I2 (g) If 2.99 moles of HI(g) , 0.359 moles of…

A: The objective of the question is to calculate the equilibrium constant, Kc, for the given reaction…

Q: er the ing chemical equitibr 4). WHICH ng graphs represents the perturbation on the system and the…

A: The given chemical equilibrium reaction is,HCOOH (aq) + H2O(aq) HCOO-(aq) + H3O+(aq)We are given 4…

Q: An analytical chemist is titrating 109.4 mL of a 0.7700 M solution of hydrazoic acid (HN3) with a…

A: We will first calculate the millimole of both acid and base. Then we will find whether weak acid or…

Q: Consider the following reaction: 2Mg(s) + O2(g) →2MgO(s), AH=-1204 kJ endothermic Submit Previous…

Q: excess CH3OH H+

A: This is an example of ketal formation reaction

Q: 7. Draw the product of the following reaction. H3C-N H3C CH3

A: Organic reactions can be defined as the reactions in which organic reactants react with each other…

Q: 5.5 Stereoisomeric Relationships: Enantiomers and Diastereomers Identify the relationship between…

A: The chiral compounds that are non superimposable on its mirror images and have opposite…

Q: Can the molecule on the right-hand side of this organic reaction be made in good yield from no more…

A: Given is organic compound.Given compound is fused ring compound. As we can see one six member ring…

Concept explainers

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.

Question

100%

A 100.0-mL aliquot of 0.100 M diprotic acid H₂A
(pK₁ = 4.00, pK2 = 8.00) was titrated with 1.00 M NaOH. At
what volumes are the two equivalence points? Find the pH at
the following volumes of base added (V) and sketch a graph
of pH versus V₁: 0, 5.0, 10.0, 15.0, 20.0, and 22.0 mL.

Expert Solution

This question has been solved!

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

SEE SOLUTION Check out a sample Q&A here

Step 1: Addition of 0.00 mL of NaOH

VIEW

Step 2: Addition of 5.0 mL of NaOH

VIEW

Step 3: Addition of 10.0 mL of NaOH

VIEW

Step 4: Addition of 15.0 mL of NaOH

VIEW

Step 5: Addition of 20.0 mL of NaOH

VIEW

Step 6: Addition of 22.0 mL of NaOH

VIEW

Step 7: Additional points

VIEW

Step 8: Plot the graph

VIEW

Solution

VIEW

Step by step

Solved in 9 steps with 9 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

Sketch two pH curves, one for the titration of a weak acid with a strong base and one for a strong acid with a strong base. How are they similar? How are they different? Account for the similarities and the differences.
Calculate the pH change when 10.0 mL of 0.100-M NaOH is added to 90.0 mL pure water, and compare the pH change with that when the same amount of NaOH solution is added to 90.0 mL of a buffer consisting of 1.00-M NH3 and 1.00-M NH4Cl. Assume that the volumes are additive. Kb of NH3 = 1.8 × 10-5.
Sketch the titration curve for a weak acid titrated by a strong base. When performing calculations concerning weak acidstrong base titrations, the general two-slep procedure is to solve a stoichiometry problem first, then to solve an equilibrium problem to determine the pH. What reaction takes place in the stoichiometry part of the problem? What is assumed about this reaction? At the various points in your titration curve, list the major species present after the strong base (NaOH, for example) reacts to completion with the weak acid, HA. What equilibrium problem would you solve at the various points in your titration curve to calculate the pH? Why is pH 7.0 at the equivalence point of a weak acid-strong base titration? Does the pH at the halfway point to equivalence have to be less than 7.0? What does the pH at the halfway point equal? Compare and contrast the titration curves for a strong acidstrong base titration and a weak acidstrong base titration.
When 40.00 mL of a weak monoprotic acid solution is titrated with 0.100-M NaOH, the equivalence point is reached when 35.00 mL base has been added. After 20.00 mL NaOH solution has been added, the titration mixture has a pH of 5.75. Calculate the ionization constant of the acid.
Sketch a titration curve for the titration of potassium hydroxide with HCl, both 0.100 M. Identify three regions in which a particular chemical species or system dominates the acid-base equilibria.
Ammonia gas is bubbled into 275 mL of water to make an aqueous solution of ammonia. To prepare a buffer with a pH of 9.56, 15.0 g of NH4Cl are added. How many liters of NH3; at 25C and 0.981 atm should be used to prepare the buffer? Assume no volume changes and ignore the vapor pressure of water.
When a diprotic acid. H2A. is titrated with NaOH, the protons on the diprotic acid are generally removed one at a time, resulting in a pH curve that has the following generic shape: a. Notice that the plot has essentially two titration curves. If the first equivalence point occurs at 100.0 mL NaOH added, what volume of NaOH added corresponds to the second equivalence point? b. For the following volumes of NaOH added, list the major species present after the OH reacts completely. i. 0 mL NaOH added ii. between 0 and 100.0 mL NaOH added iii. 100.0 mL NaOH added iv. between 100.0 and 200.0 mL NaOH added v. 200.0 mL NaOH added vi. after 200.0 mL NaOH added c. If die pH at 50.0 mL NaOH added is 4.0 and the pH at 150.0 mL NaOH added is 8.0, determine the values Ka and Ka. for the diprotic acid. d.
A 0.400-M solution of ammonia was titrated with hydrochloric acid to the equivalence point, where the total volume was 1.50 times the original volume. At what pH does the equivalence point occur?
Ka for formic acid is 1.7 104 at 25C. A buffer is made by mixing 529 mL of 0.465 M formic acid, HCHO2, and 494 mL of 0.524 M sodium formate, NaCHO2. Calculate the pH of this solution at 25C after 110 mL of 0.152 M HCl has been added to this buffer.
What mass of NH4Cl must be added to 0.750 L of a 0.100-M solution of NH3 to give a buffer solution with a pH of 9.26? (Him: Assume a negligible change in volume as the solid is added.)
You want to make a buffer with a pH of 10.00 from NH4+/NH3. (a) What must the [ NH4+ ]/[ NH3 ]ratio be? (b) How many moles of NH4Cl must be added to 465 mL of an aqueous solution of 1.24 M NH3 to give this pH? (c) How many milliliters of 0.236 M NH3 must be added to 2.08 g of NH4Cl to give this pH? (d) What volume of 0.499 M NH3 must be added to 395 mL, of 0.109 M NH4Cl to give this pH?
A sodium hydrogen carbonate-sodium carbonate buffer is to be prepared with a pH of 9.40. (a) What must the [ HCO3 ]/[ CO32 ]ratio be? (b) How many moles of sodium hydrogen carbonate must be added to a liter of 0.225 M Na2CO3 to give this pH? (c) How many grams of sodium carbonate must be added to 475 mL of 0.336 M NaHCO3 to give this pH? (Assume no volume change.) (d) What volume of 0.200 M NaHCO3 must be added to 735 mL of a 0.139 M solution of Na2CO3 to give this pH? (Assume that volumes are additive.)