The titration curve from the reaction of a strong base with a weak acid is shown below. Recalling the experiment in which you identified the "half-equivalence point", what is the approximate pKa of the acid?

The titration curve from the reaction of a strong base with a weak acid is shown below. Recalling the experiment in which you identified the "half-equivalence point", what is the approximate pKa of the acid?

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter4: Stoichiometry: Quantitative Information About Chemical Reactions

Section4.9: Spectrophotometry

Problem 3.1ACP

See similar textbooks

Related questions

Q: Q4. The oxidation process that is typically carried out in the presence of H2O is called: Your…

A: We have to tell the name of the oxidation process which is typically carried out in presence of…

Q: In designing a kinase inhibitor as a chemotherapeutic agent. tissue specificity of the inhibitor is…

Q: 41. Arrange the following sets of compounds in order of their decreasing boiling points. 0 OH 1 3 A.…

Q: 7- Which of the following statements is false? a) The greater the energy gap in a metal complex, the…

A: Before answering these questions, we will need a few concepts given below: 1. We know that E=hν…

Q: According to the kinetic-molecular theory of gases: gaseous particles are in constant, nonlinear…

A: Kinetic energy of a molecule can be defined as the energy possessed by the molecule due to its…

Q: Two immiscible solvents (water and benzene) is used to extract 0.70g of solute. Solve for the…

A: The distribution coefficient can be calculated by using the following formula: Kd = concentration of…

Q: 1. How much heat is released when 9.22 grams of glucose C6H12O6 in your body reacts with according…

A: Given, C6H12O6 + 6O2 → 6CO2 + 6H2O ∆H = -2803 kJ mass of Glucose (C6H12O6) = 9.22 g Heat released…

Q: A- Alcohol B - Ether C - Aldehyde D- Ketone 6. Based on the illustration, what is the classification…

A: IUPAC nomenclature is used for naming the organic compounds as recommended by international union of…

Q: Draw the condensed structural formula of the following compounds: acid a)…

A: To draw the condensed structural formula of the following compounds:

Q: Chemistry give final product and fill in the four blanks for the second one [#¹] +

A: Note- Dear student , since it is a multiple questions so I solved first question according to rules…

Q: QUESTION 3 Calculate the Km of the enzyme without any inhibitor when using 12U of Alkaline…

Q: .The hybridization of carbon atom in benzene is - 13 A-20+2 1. O B - 40 O C-10+2π. O

A: Benzene is a combination of carbon and hydrogen atoms.The hybridization is sp2.

Q: Intermolecular means Hydrogen bonds can occur among molecules O False O True

Q: What are the substances found in the supernatant liquid that must be discarded in DNA extraction

Q: Directions: Enumerate at least ten (10) hazard and risk in the workplace and the corresponding ways…

Q: Use the molecular structures below to answer the next 4 items. OH OH HO OH OH u h r r ? A B с D E…

Q: Determine the osmotic pressure at 50C if the mole fraction of the solute is 0.125 and the vapir…

Q: This reaction mechanism is the proposed explanation for the preparation of alkenes from the organic…

Q: Q8. Copper is well-known conductive material, but it can lose its conductivity if size is reduced to…

A: effect on conductivity of conducting material due to reduction in size

Q: Which of the following compounds will NOT give a positive Tollen's test? * 요. CH₁ C-H OH O Option B…

A: In this question, we will select the compound which does not give positive Tollen's test. You can…

Q: hydrolysis reactions for the derivatives of Boric acid - Sodium tetraborate - sodium…

A: Hydrolysis of Sodium tetraborate :-

Q: . The data in the table below was obtained for the reaction:…

Q: 2. How much heat is absorbed during photosynthesis when 9.22 grams of glucose C6H12O6 is produced?…

A: Given that - Balanced chemical reaction - 6CO2 + 6H2O ----> C6H12O6 + 6O2 , ∆H = +2803 kJ…

Q: 2. (a) The v(CO) of isoelectronic series [Mn(CO)], [Cr(CO)6] and [V(CO) are 2090 cm¹ 2000cm¹ and…

A: This Question is based upon Inorganic IR Spectroscopy.

Q: From the equivakent molar conductance at infinite dilution of potassium chloride (0.0149), sodium…

Q: Consider the Latimer diagram below for a metal M and its oxidized states of M+ and M+3. • What is…

Q: 34. The acidity of the carboxyl functional group is attributed to several molecular properties.…

Q: Fruits are sometimes picked while green and transported long distances, after which they are exposed…

A: Ethene gas (ethylene) is a hydrocarbon with a double bond. It is C2H4 gas.

Q: The major product of the following reaction is : _COCH3 (i) KMnO4/ КОН, Д (ii) H2SO4 (dil) CH3

A: The alkyl group attached to the benzene ring having at least one hydrogen atom at the key atom can…

Q: SiCl3 + CF3 OLI F3C Li (2 equiv) Et₂O

Q: What is the correct name for the following compound? H.C. Select one: a. m-ethylacetophenone b.…

A: The IUPAC name of the compound can be written on the basis of the number of carbon atoms in the main…

Q: Consider the following electrochemical cell at 25 C: Pt|H2(g,p)|HCl(aq), 0.010…

A: H2(g) is undergoing oxidation to H+(aq) and AgCl(s) is undergoing reduction to Ag(s). The…

Q: Using the Haber process, represented by the balanced chemical equation below, 384 L of ammonia are…

A: Given, N2 + 3H2 ----> 2NH3 Volume of NH3= 384 L Volume of N2= ?

Q: What is the In K (the In of the Keq) for the reduction of Al(OH)4¹ complex to Al(0)? • Write answer…

Q: 26. Which of the following compounds would be the most soluble in H₂O during extraction…

A: Water is a polar solvent. According to the rule of thumb "like dissolves like", compounds which are…

Q: I. Indicate reagents that would accomplish each of following transformations. More than one reaction…

A: Given, Conversation reaction :

Q: Identify the compound in the picture and draw the product of letter E when reacted with hydrazine

Q: 67. Ethanol is heated with an acidified potassium manganate (VII) solution. What would be the…

A: Option A is correct. Because acidified pottasium permanganate oxidizes primary alcohol to aldehyde…

Q: Three aqueous solution are given calculate the motality for these solutions, 9250 ml. of 2.90 on m…

Q: Observe the following reaction and answer items 73 to 80. H 6= 0=$=0 он ? Ho 73. What is the main…

A: Organic reaction mechanisms: As per our guideline we have to answer first question only.

Q: Molarity tells us the number of moles * of solute in one liter of a solution. O False True O O

A: Concentration of any solution can be calculated by molality, molarity, ppm etc.

Q: Write 5 possible positional isomer of tridecane (C13H26) using line structure. Name each isomer.

A: Positional isomers are the isomers having same molecular formula but different positions of group.

Q: An unknown sample containing moved alkal (NaOH, NaHCO or Na CO) was analyzed using the double flask…

Q: At high temperatures, glass has a tendency to change its shape into a sphere. Assume that the…

Q: What is the in value of the equilibrium free Ag ion cor

Q: 53. ASSERTION: Acetylene on treatment with alkaline KMnO4 produce acetaldehyde. REASON: Alkaline…

A: Answer no. 53 as specified.

Q: Br2 H₂O

Q: 1. Determine the no. of independent variables that shall be specified, in order to define the close…

A: PHASE RULE

Q: 12:35 Th 7 21 thg 5 a bai tap c1-đã gộp-đã nén - میں ویلی OH 0%+0² [a OH oo-oo OH Br oo-ob In $ H…

A: Given, Grignard reagent ( RMgX) used for conversion of carbonyl compounds such as ketones Or…

Q: 27. Which of the following carboxylic acids will yield the least amount of protons in an aqueous…

A: Carboxylic acids are acidic in nature and the acidity of carboxylic acid depends on the nature of…

Concept explainers

Precipitation Titration

Precipitation analysis is used to analyze drugs, and to measure the salt content in food and beverages. It is an important concept from the examination point of view many practical questions are asked on the topic. This topic is significant in the professional exams for both undergraduate and graduate courses, especially for

Question

The titration curve from the reaction of a strong base with a weak acid is shown below. Recalling the experiment in which you
identified the "half-equivalence point", what is the approximate pKa of the acid?
Titration of strong base into weak acid
4
6
8
10
12
volume of base (ml)
32H2900
공
13
11
8
7
5
4
3
1
0
O pKa = 3.5
O pka = 12
O pka = 1.5
O pka = 7
14

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

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 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

An indicator was not used during potentiometric titration of a weak acid Is there a positive error, negative error, no effect, or error could not be determined In terms of the Computed pKa of the unknown weak acid?
The titration of an unknown weak acid with 0.10M NaOH is carried out and the pH at the equivalence point was found to be 8.50. Which indicator is best suited for the analyte? pKa=4.2 a. phenolphthalein pKa=9.7 b. methyl red pKa=5.0 c. methyl orange pKa=4.2 d. cresol purple pKa=8.3
Consider a titration of 40.00 mL of 0.1250 M Na2CO3 with 0.4000 M HCl. Carbonic acid (H2CO3) has a pKa1 of 6.351 and a pKa2 of 10.329. What is the pH at the first equivalence point?
A mixture of 0.20M ethanoic acid and 0.30M sodium acetate is given. What is the pH of the medium if the pKa of ethanoic acid is 4.76?
You are in charge of making a phosphate buffer at pH 7.5. You are out of solid versions of phosphate,but you find stock solutions of 1.0 M NaH2PO4 and 1.0 M Na2HPO4 in the lab and decide to make thebuffer with these solutions. How much of each of the stock solutions would you mix together to make 200mL of 1.0 M phosphate buffer at pH 7.5? (The pKa values of phosphoric acid are 2.1, 7.2, and 12.3.)
The pH at the midpoint of a titration between a weak base with a strong acid was 10.9. Using the pKa of the conjugate acid, identify the base in the titration. A.) Ammonia - Conjugate acid pKa = 9.3 B.) Ethylamine - Conjugate acid pKa = 10.9 C.) Phenolate ion - Conjugate acid pKa = 10.00 D.) Acetate ion - Conjugate acid pKa = 4.8
After a buffer solution of carbonic acid (with pKa of 3.75) was added with 1ml of sulfuric acid, the resulting pH of the carbonic acid buffer solution is 1.25. Do you think the carbonic buffer system still works effectively after the addition of the said acid?
Consider a titration of 40.00 mL of 0.1250 M Na2CO3 with 0.4000 M HCl. Carbonic acid (H2CO3) has a pKa1 of 6.351 and a pKa2 of 10.329. What is the pH after 8.00 mL of HCl have been added?
Construct a curve for the titration of 20.00 mL 0.500 N succinic acid (HO2CCH2CH2CO2H) by 0.1000 N NaOH solution. Use MS Excel for convenience. Titrant volumes: 0.00 mL, 5.00 mL, 10.00 mL, 15.00 mL, 20.00 mL, 25.00 mL, and 30.00 mL. (CH2)2(CO2H)2⇄(CH2)2(CO2H)(CO2)^- +H^+ Ka1= 6.21 x 10^-5; pKa1 =4.207 (CH2)2(CO2H)(CO2)^-⇄(CH2)2(CO2)2^2-+ H^+ Ka2= 2.31 x 10^-6; pKa2 =5.636
1. The molar solubility of Ag2SO3 is 1.55× 10-4 M. Calculate the Ksp of Ag2SO3. a. 7.45 x 10^-12 b. 1.55 x 10^-4 c. 2.40 x 10^-8 d. 1.49 x 10^-11 e. 3.72 x 10^-12 2. What is the difference between the end point of an acid–base titration and the equivalence point? a. There is no difference; these are just two terms meaning the same thing. b. At the end point, the acid and base are present in equal numbers of moles. At the equivalence point, the indicator changes color. c. The end point is always at pH 7 but the equivalence point can be at various pH values. d.The end point can be at various pH values but the equivalence is point always at pH 7. e. At the end point, the indicator changes color. At the equivalence point, the acid and base are present in equal numbers of moles A solution at 25 °C that contains 1× 10-8 M H3O+ is a. basic b. acidic c. neutral d. both acidic and basic
A solution containing Mg2+ was buffered to pH 9.99 and titrated with EDTA. Eriochrome black T, with p?a1 = 6.3 and p?a2 = 11.6 was used as the indicator. It is a diprotic acid, H2E What is the fraction of the predominant form of eriochrome black T in solution at this pH? (To answer this, report the alpha fraction of the indicator’s most prevalent species at this pH)
Q. Using your titration curve estimate the pKa for NaH2PO4, compare this value to the literature value in the introduction. Explain your answer. The literature values for the pKa of the three protonation steps of H3PO4 are: pKa,1 = 2.15 pKa,2 =7.09 pKa,3 = 12.32