What is the ratio of conjugate base to undissociated acid for a weak acid with a pka of 4.4 at a pH of 9? Putyour answer in the form of (scientific notation, two significant digits):X.X*10^y

Given : pKa = 4.4 pH = 9 To determine : Ratio of conjugate base to weak acid

Answered: What is the ratio of conjugate base to…

What is the ratio of conjugate base to undissociated acid for a weak acid with a pk, of 4.4 at a pH of 9? Put your answer in the form of (scientific notation, two significant digits): X.X*10^y

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter15: Solutions Of Acids And Bases

Section: Chapter Questions

Problem 15.24QE

See similar textbooks

Related questions

Q: For 2,2-dimethylbutane Write out a balanced combustion reaction using molecular formulas. Draw all…

Q: Write the palladium-containing product for the following reaction and indicate its stereochemistry:…

A: We can solve this question by using the concept of trans effect where CN- regulates the substitution…

Q: Calculate the pH when 21.0 mL of 0.200 M HBr is mixed with 30.0 mL of 0.400 M CH;NH2 (Kb = 4.4 x…

Q: 1. The density of CH,CN is 0.786 g/mL, and the density of CH,OH is 0.791 g/mL. A solution is made by…

Q: You have an alkyl halide and the product has a thiol group without an alkyl, what is the reagant?…

A: These are substitution reaction which takes place between alkyl halide and Nucleophile

Q: The answer is -44.97 but please provide the steps. As2S3(s) ⇌ 2As3+(aq) + 3S2−(aq) K = 4.95 × 10-20…

A: The reactions given are, 1) As2S3(s) ⇌ 2 As3+(aq) + 3 S2−(aq) K = 4.95 × 10-20…

Q: Identify the functional groups circed in the molecules below. HO, H-N NH2 7. но Blank # 1 Blank # 2…

A: Different functional groups are: Aldehyde group (R-CHO) Carboxylic group (R-COOH) Ether (R-O-R')…

Q: What is the numerical value of K, the equilibrium constant, for a reaction with a A G° of -10 kJ at…

Q: The enthalpy of sublimation (direct conversion from solid to gas) of carbon dioxide is 26.1 kJ/mol.…

Q: 103 The nucleus of a 45Rh atom weighs 102.90550 u. Calculate the binding energy in 103 units of…

Q: determine what would happen to the position of the equilibrium when the following changes are made…

A: Equilibrium can be defined as the state of reaction in which rate of forward reaction become equal…

Q: The negative value of standard electrode potential indicates that the metal is L easily oxidized II.…

A: Oxidation process occur at anode and involve loss of electrons. Reduction involve gain of electrons…

Q: the following functional groups according to their DECREASING reactivity with nucleophiles. [esters,

A: Now the above picture represents the reactivity order towards the nucleophile

Q: Compound Z has a heat of vaporization of 155.9 J/g, a specific heat capacity of 2.08 J/gºC, and…

A: Given, Boiling point = 72.1 °c □Hvap = 155.9 J/g C(l) = 2.08 J/g-°c Mass of. Z(m) = 562.4 g

Q: Malate is converted to oxaloacetate by the enzyme malate dehydrogenase in the final reaction of the…

A: Given : E° = -0.17 V E° = -0.32 V Finds : To calculate the 1) ∆E° 2) ∆G° 3) ∆G is favorable or…

Q: Using the thermodynamic information, calculate the standard reaction free energy for the reaction…

A: In this question, we have to calculate the ∆Grxn and also fill the given boxes.

Q: Which of the statements below is true for a reaction that is endothermic and leads to an decrease in…

Q: A reaction mechanism is show below A +B → C step-1 step-2 step-3 step-4 C+D→ E C+C→ C2 E → D+F What…

A: Write balanced equation for the reaction ?

Q: Balance the following oxidation-reduction reaction as if it were to occur in a basic solution. I(aq)…

A: Oxidation means losss of electrons and reduction means gain of electrons.

Q: 3. Write the palladium-containing product for the following reaction and indicate its…

Q: Which of the following structures would not be a legitmate intermediate for the mechanism of the…

A: We can solve these questions by drawing the full mechanism of the given reaction and applying the…

Q: 1. A two-component mixture is analyzed by paper TLC. Component A is more soluble in the mobile phase…

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

Q: 30. the atomic masses on the table below to calculate Am for the change 14 Si 2 7N. u ch is more…

Q: 7) The o-complex formed for the bromination of benzoic acid should be Br. H. .COOH .COOH СООН Br…

Q: 2.1 Calculate the A H for this reaction at 298 K.

A: We are given the values of standard enthalpy, standard entropy and standard gibb energy.

Q: sing the energy (heat) released during the nucle. ires. sing the energy (heat) released during the…

A: In nuclear power plant's energy produces due to nuclear energy then it supplied to water to form…

Q: Group of answer choices from the cathode to the anode from the positive electrode to the negative…

A: Electrochemistry can be defined as branch of chemistry that deals with interaction between chemical…

Q: How many atoms of carbon are combined with 7.31 moles of hydrogen atoms in a sample of the compound…

A: Given : number of moles of hydrogen atoms in a sample of heptane = 7.31 mol To calculate : number…

Q: II. lodometry II. Permanganate IV. Dichromate

A: Indicators can be defined as the substances that change colour when they are added to basic or…

Q: A lake water is analyzed and found to have 1.2 mg NH4*/L, at pH = 7.8. a. Using pKa and ionization…

A: pKa for NH4+ ions is equal to 9.26.

Q: Use the standard reaction enthalpies given below to determine ΔH°rxn for the following reaction:…

Q: 49. Which redox equation is correctly balanced? A. Cr3+ + Mg → Cr + Mg²+ A13+ + K → Al + K+ C. Sn4+…

A: A redox reaction is balanced by balancing the mass and charge. Hence the number of atoms of all the…

Q: What is the mass of a piece of iron that releases 212.32 joules of heat as it cools from 89.65…

Q: 3. A piece of metal "X" weighing 0.0382 g was placed in a eudiometer containing dilute aqueous HCI.…

A: According to Q&A guidelines of Bartleby, we are supposed to answer only the first 3 sub-parts of…

Q: Using the data, calculate the delta H°, delta S°, delta G° for the following reaction and say if it…

A: The reaction given is, => P4O10 (s) + 6 H2O (l) →C6H12O6 (s) + 6 O2 (g)

Q: The following data have been obtained for the olysis of adenosine triphosphate, catalyzed by hy- en…

A: Given data:

Q: Draw and name five isomers of C6H14. There are more than five, just draw and name five of them.…

A: Draw and name five isomers of C6H14.

Q: Chemistry Briefly describe the differences between the scanning and SIM approaches with reference…

A: Answer - According to the question - (TIC) - A TIC (Total Ion Chromatogram) is a chromatogram…

Q: 19.64 g H2SO4 dissociated in 100.0 g of water in a coffee cup calorimeter. The temperature rose from…

Q: Which one of the following is the strongest or most powerful reducing agent? A) Br- B) Cr+3 under…

A: Reducing agent is the agent which reduces other reactant and oxidises itself. Higher the value of…

Q: According to the following reaction, how many grams of nitrogen gas will be formed upon the complete…

A: Given Mass of NH4NO2 = 28.0 g We know that, Number of mol = mass / molar mass Number of mol of…

Q: Calculations: Standardization of HCl Titrating Solution: Using your best two or three…

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

Q: Which describes the functional group(s) of the following molecule? H. CCH2CH3 aldehyde ketone…

A: The given molecule is : Which describes the functional group (s) of the given molecule = ? Options…

Q: How can chemical potential energy be related to the heat lost or gained in chemical reactions?

A: Exothermic reactions are those in which heat is released and endothermic reaction are those in which…

Q: 5. What is the net ionic equation for the reaction that occurs if we mix aqueous solutions of…

A: Dear student, As you have asked multiple question but according to guidelines we will solve first…

Q: A CSTR reactor is designed for the irreversible conversion of A into B and C. The reactor is…

A: The rate law of the reaction is given as, => -rA = K[A] Given: [A]0 = 100 g/L. Assuming that the…

Q: What Concentration of sulfite ion will produce a solution with a ph of 10.00?

A: pH of any solution is called as the concentration of the H+ ions present in it. The pH of the…

Q: Create a cell diagram with states of matter and charges for the two redox reactions below: Al(S) +…

A: Let us discuss both the reaction.

Q: A 0.4755-g sample containing (NH,),C,O, and inert materials was dissolved in water and 3. strongly…

Q: [References] a. Will dichromate ions oxidize chloride ions to free chlorine in acidic solution?…

A: Oxidising agent can be defined as the species that oxidises other species. Oxidation means loss of…

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

What is the ratio of conjugate base to undissociated acid for a weak acid with a pka of 4.4 at a pH of 9? Put
your answer in the form of (scientific notation, two significant digits):
X.X*10^y

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 1 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 conjugate acidbase pairs, how are Ka and Kb related? Consider the reaction of acetic acid in water CH3CO2H(aq)+H2O(l)CH3CO2(aq)+H3O+(aq) where Ka = 1.8 105 a. Which two bases are competing for the proton? b. Which is the stronger base? c. In light of your answer to part b. why do we classify the acetate ion (CH3CO2) as a weak base? Use an appropriate reaction to justify your answer. In general, as base strength increases, conjugate acid strength decreases. Explain why the conjugate acid of the weak base NH3 is a weak acid. To summarize, the conjugate base of a weak acid is a weak base and the conjugate acid of a weak base is a weak acid (weak gives you weak). Assuming Ka for a monoprotic strong acid is 1 106, calculate Kb for the conjugate base of this strong acid. Why do conjugate bases of strong acids have no basic properties in water? List the conjugate bases of the six common strong acids. To tie it all together, some instructors have students think of Li+, K+, Rb+, Cs+, Ca2+, Sr2+, and Ba2+ as the conjugate acids of the strong bases LiOH, KOH. RbOH, CsOH, Ca(OH)2, Sr(OH)2, and Ba(OH)2. Although not technically correct, the conjugate acid strength of these cations is similar to the conjugate base strength of the strong acids. That is, these cations have no acidic properties in water; similarly, the conjugate bases of strong acids have no basic properties (strong gives you worthless). Fill in the blanks with the correct response. The conjugate base of a weak acid is a_____base. The conjugate acid of a weak base is a_____acid. The conjugate base of a strong acid is a_____base. The conjugate acid of a strong base is a_____ acid. (Hint: Weak gives you weak and strong gives you worthless.)
Write the chemical equation and the expression for the equilibrium constant, and calculate Kb for the reaction of each of the following ions as a base. (a) sulfate ion (b) citrate ion
Two students were asked to determine the Kb of an unknown base. They were given a bottle with a solution in it. The bottle was labeled aqueous solution of a monoprotic strong acid. They were also given a pH meter, a buret, and an appropriate indicator. They reported the following data: volume of acid required for neutralization = 21.0 mL pH after 7.00 mL of strong acid added = 8.95 Use the students' data to determme the Kb of the unknown base.
Is the monoprotic acid Y or the monoprotic acid Z the stronger acid in each of the following situations? a. At equal concentrations, Y dissociates to a greater extent than Z in water. b. Ka for Z is larger than Ka for Y. c. The equilibrium position for the dissociation of Y lies farther to the right than that for Z. d. Proton transfer to water occurs to a lesser extent for Z than for Y.
For oxyacids, how does acid strength depend on a. the strength of the bond to the acidic hydrogen atom? b. the electronegativity of the element bonded to the oxygen atom that bears the acidic hydrogen? c. the number of oxygen atoms? How does the strength of a conjugate base depend on these factors? What type of solution forms when a nonmetal oxide dissolves in water? Give an example of such an oxide. What type of solution forms when a metal oxide dissolves in water? Give an example of such an oxide.
Calculate the pH of each of the following solutions. (a) 10.0 mL of 0.300 M hydrofluoric acid plus 30.0 mL of 0.100 M sodium hydroxide (b) 100.0 mL of 0.250 M ammonia plus 50.0 mL of 0.100 M hydrochloric acid (c) 25.0 mL of 0.200 M sulfuric acid plus 50.0 mL of 0.400 M sodium hydroxide
The pigment cyanidin aglycone is one of the anthocyanin molecules that gives red cabbage (Brassica oleracea var. capitata f. rubra) its characteristic red coloration. Many chemistry students have used this red cabbage indicator to study acid-base chemistry. Estimate tire pH range at which cyanidin agly-cone shows a color change. Anth-H(aq) Anth(aq) + H+ (aq) Ka = 1.3 107
Amino acids are an important group of compounds. At low pH, both the carboxylic acid group (CO2H) and the amine group (NHR) are protonated. However, as the pH of the solution increases (say, by adding base), the carboxylic acid proton is removed, usually at a pH between 2 and 3. In a middle range of pHs, therefore, the amine group is protonated, but the carboxylic acid group has lost the proton. (This is called a zwitterion.) At more basic pH values, the amine proton is dissociated. What is the pH of a 0.20 M solution of alanine hydrochloride, [NH3CHCH3CO2H]Cl?
Composition diagrams, commonly known as alpha plots, are often used to visualize the species in a solution of an acid or base as the pH is varied. The diagram for 0.100 M acetic acid is shown here. The plot shows how the fraction [alpha ()] of acetic acid in solution, =[CH3CO2H][CH3CO2H]+[CH3CO2] changes as the pH increases (blue curve). (The red curve shows how the fraction of acetate ion, CH3CO2, changes as the pH increases.) Alpha plots are another way of viewing the relative concentrations of acetic acid and acetate ion as a strong base is added to a solution of acetic acid in the course of a titration. (a) Explain why the fraction of acetic acid declines and that of acetate ion increases as the pH increases. (b) Which species predominates at a pH of 4, acetic acid or acetate ion? What is the situation at a pH of 6? (c) Consider the point where the two lines cross. The fraction of acetic acid in the solution is 0.5, and so is that of acetate ion. That is, the solution is half acid and half conjugate base; their concentrations are equal. At this point, the graph shows the pH is 4.74. Explain why the pH at this point is 4 74.