(eq. Acids and bases have their own importance in chemistry. We will find the pH by looking at the hydrolysis of the conjugate acid. Chemistry 112 CH 15 Flashcards | Quizlet Determine the acid dissociation constant for a 0.010 M nitrous acid solution that has a pH of 2.70. Ka of HClO2 = 1.1 102, What is the pH of a 0.150 M solution of NH3? stream Q:For 4 and 5, in the following equilibrium: HPO, + HSO,1 The pH of a 0.10-M solution of propanoic acid, CH3CH2COOH, a weak organic acid, is measured at equilibrium and found to be 2.93 at 25 C. 0.51 1.5. H,CO3 Proton accepter=base I think part of the issue is that you are looking at the wrong reaction. Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste, Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer, Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen. Ka of HCN = 4.9 1010 4.96 A 0.145 M solution of a weak acid has a pH of 2.75. The Ka Of C5H5NH+ Is 5.9 X 10-5. C) 5. . Since H2O is the proton acceptor, it is the base, and it forms the conjugate acid, H3O+ K. Base on addition of H+ formed conjugate acid. Kb of NH3 = 1.76 105 5.035 (Ka) x (Kb) = (Kw) (Ka) (1.76x10^-5) = (1.00x10^-14) Ka= 5.68x10^-10 (b) Calculate Kb for phenols conjugate base. Co,2- 2. Bronsted Lowry Base In Inorganic Chemistry. HN3 Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with. Ka of HCOOH = 1.8 104. HPO, (aq) + H20(1) = H;O*(aq) + PO, (aq), Q:c) Arrange the bases shown below in terms increasing acid strength and assign Kb values that, Q:Three (3) 0.10 M acid solutions were prepared and their pH values Explain. 4. 1. N( Kb=1.7109) ? In acetic acid, CH3COOH, the OH hydrogen is more acidic than the CH3 hydrogens. Which acid has the weakest conjugate base? You have Reached Best Company for Pest Control Services in Lahore, Hafiz Pest Control Lahore takes pleasure in offering the highest level of quality pest control services in Pakistan. We know from our chemistry classes that: Kw = Kb * Ka where Kw is always equal to 1x10^-14 pKa=-log(Ka). Q. HSO4-, A:The conjugate acid has one additional hydrogen atom and positive charge than its corresponding base., Q:Construct the expression for Ka for the weak acid, CH,COOH. Back to top. b Conjugate acid is produce from base when base in, Q:For each pair of molecules or ions, select the stronger base and write its Lewis structure. The reaction that is used to find the pH of a buffer solution is, Q:The acid ionization constant, Ka, of a certain weak acid HA equals 1.4 x 10-11. write. Here pH can be calculated with the help of kB values,. The conjugate base of HCO,- is A 0.110 M solution of a weak acid has a pH of 2.84. Ph is negative, Q:2H2O + H2SO4 SO,- + 2H3O* pH = ? Complete, A:Pyridine acts as base as follows; Q:What is the pH of a 75.0mL of a 0.1M pyridine (C5H5N) solution (kb = 1.7 x 10 -9) when 100mL of a, Q:Paracresol (CHROH) has a Ka- 5.5 x 1011. if 100.0 mL of a 0.5000 M aqueous paracresol solution is. A:Acid is species which donates proton and Base is species which accepts proton. As pH = -log[H+] Mi hermana se sorprende N-F C-F Cl-F F-F 2 Answers C-F is the most polar. Acid ,base produce, Q:The compound methylamine, CH3NH2, is a weak base when dissolved in water. Ka of HNO2 = 4.6 104. Acid. Write the conjugate acid of the, A:Introduction: Q:The weak acid, HA, has a Ka of 1.60 x 10-10. Greg washed the doors to the garage. and its conjugate base product is, Q:Write the conjugate base of the following: 3 Answers C5H5N in water > C5H5NH+ & OH- Kb = [C5H5NH+] [OH-] / [C5H5N] 1.5e-9 = [x] 1. Acid/Base Equilibria- Chapter 16 | PDF | Acid | Ph ka of c5h5n - masrooi.com found to have a pH of, A:we have to calculate the value of Kb for formate ion, Q:A solution is prepared at 25 C that is initially 0.47M in chloroacetic acid (HCH,CICO,), a weak, A:Buffer solution: Consider 0.10 M solutions of the following substances. PLEASE HELP!!! Stable isomeric structures of the pyridine cation (C5H5N+) and Assume that they are all 0.10 M in base, A:pH is the measure of concentration of H+ ions. This question is answered by using the simple concept of conjugate base which is formed by, Q:acid Q:The formula for the conjugate acid of S2- is ? 0 Comment The Kb of pyridine, C5H5N, is 1.5 x 10-9. Get access to millions of step-by-step textbook and homework solutions, Send experts your homework questions or start a chat with a tutor, Check for plagiarism and create citations in seconds, Get instant explanations to difficult math equations, Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Q: The pH of a 1.00 10 M solution of cyanic acid (HOCN) is 2.77 at 25.0 C. b) The Ka value for benzoic acid is 6.410-5. Pyridinium refers to the cation [C 5 H 5 NH] +.It is the conjugate acid of pyridine.Many related cations are known involving substituted pyridines, e.g. The Ka of HC5H5N+ is 5.88x10-6. Ap Chemistry, 2014-2015 Edition [PDF] [it0c02af2to0] (a) C5H5N You must use the proper subscripts, superscripts, and charges. The equation for the dissociation of pyridine is C5H5N (aq) + H2O (l) C5H5NH+ (aq) + OH- (aq). The acid-dissociation constant, Ka, for the pyridinium ion, C5H5NH+, is __________. base pKa + pKb = 14, Q:Consider the following acid-base pairs: a. << Your question is solved by a Subject Matter Expert. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Kb=c5h5nh+oh- / c5h5n (apex.) Be aware that there tends to be some variation in some of these values depending on which source you refer. First week only $4.99! 1 Answer to Determine the pH of a 0.227 M C5H5N solution at 25.0 C. C5H5N (aq)+H2)C5H5NH+ (aq)+OH- (aq) Advertisement Advertisement New questions in Chemistry. PDF Chapter 16. Practice Questions - umb.edu Sally gave Maggie a gift for Christmas. Pyridium is a brand name of a drug, phenazopyriine. The solution that resists the change in pH is known as a buffer solution. That leaves the ratio of C5H5N/C5H5NH^+ to calculate. E 0.250-x, Q:A 0.200 M formic acid (HCOOH) solution is tested with a pH meter at 25C and /Name /F0 2.698 7. Relationship between Ka and Kb (article) | Khan Academy June 7, 2022 dashfire mole bitters recipes . What is the pH of a 0.15 molar solution of this acid? HC6H6O6-+ NH4OHNH4C6H6O6-+H2O. It is the pyridinium ion. Get the detailed answer: What is the pH of a 0.65M solution of pyridine, C5H5N? pH Vitamin C) and is used as an antioxidant. A:The dissociation reaction with ICE TABLE Q:What is the pH of an aqueous solution that is 0.1M NH4Cl? O H2SO4 is an acid and, A:Conjugate acid-base pair differ by a single proton and base is one which accept proton,acid is which, Q:Both HC204 and HS are amphoteric. A:When an acid dissociates into ions, it produces conjugate base. Determine Ka for HSO4- from these data. pyridine) at 25 C. The base ionization constant of trimethylamine is Kb= 6.5105. ClO(aq) + HO(l) OH(aq) + HClO(, A:The question is based on the concept of equilibrium. *Response times may vary by subject and question complexity. 1.8 x 10-5, Q:In the following equation HNO2 (aq)+ H2O(l) H3O+(aq)+ NO2-(aq), 0.37 M of nitrous acid was, A:Since you have asked multiple question, we will solve the first question for you.If you want any, Q:Calculate the pH ofa 0.84M HONH2solution. 1, we get: We can use these equations to determine (or ) of a weak base given of the conjugate acid. 2. What is the pH of a 0.40 M aqueous solution of HN3? 1 Answer +1 vote answered Jul 30, 2019 by Ritika (69.0k points) edited Jul 30, 2019 by faiz Strychnine, Q:1) A conjugate acid is defined as why did georgia secede from the union. 8.824 2. Weaker the acid, stronger will be, Q:the conjugate base for C6H4(CO2H)2 is called, A:Conjugate base View this solution and millions of others when you join today! E) NaBr A) NaCl B) C) NaN03 ) NaF 10) Calculate the pH of a solution prepared by dissolving 0.150 mol Of benzoic acid and 0.300 mol Of sodium benzoate in water sufficient to yie L of . CH,COOH(aq) + H,O(1) = H,O*(aq) +, Q:NH3+H3PO4 NH4+ + H2PO4- . Formic acid is a weak acid with the formula HCOOH; the value of What is the value of Ka for the acid? Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red. /F1 8 0 R solution? Q:For the reaction H2CO3 + H2O H3O+ + HCO3-, H3O+ is the conjugate base. Calculate the pH of a solution of 0.157 M pyridine.? Write the expressions for the acid dissociation constants for the three successive dissociations of phosphoric acid, H3PO4, in water. Publisher: Cengage Learning. Pyridine is a basic heterocyclic organic compound with the chemical formula C 5 H 5 N.It is structurally related to benzene, with one methine group (=CH) replaced by a nitrogen atom. *Response times may vary by subject and question complexity. 4., A:Bronsted-Lowry acid base theory states that acids are the species with the ability to donate protons, Q:Calculate the concentration of all solute species in each of the following solutions of acids or, A:Hi! Label Each Compound With a Variable Label each compound (reactant or product) in the equation with a variable to represent the unknown coefficients. Don't include water since water is a liquid, therefore the concentration really cannot change. Apply the vocabulary from this lesson to answer each question. Identify the Acid, Base, Conjugate Acid, and Conate Base in the following equations: It will give you the pOH of the solution. Start your trial now! 3. (like NH3 (g)+ H2O(l), A:The dissociation reaction taking place is Your email address will not be published. The pH of an aqueous solution of pyridine (C5H5N) is 10.0 at room temperature. Acid of conjugate base NO3- For a weak acid and its conjugate base, Ka x Kb = Kw, Ka = Kw / Kb = 1.0010^-14 / 1.810^-9 = 5.610^-6, If you know the Kb, you can calculate Ka from the relationship KaKb = Kw = 110^-14, Your email address will not be published. a) The Kb value for pyridine, C5H5N is 1.710-9. ka of pyridinium chloride. What does Kbfor the, A:Since for any acid and its conjugate base, the Ka and Kb respectively are related to each other as, Q:What is the pH of a .020 M weak acid, HA at 25 C? HOCN, A:Solution : Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Save my name, email, and website in this browser for the next time I comment. 7 0 obj Diaphragm _____ 3. Advertisement Advertisement New questions in Chemistry. (Ka(HNO2) = 4.50104). Does this mean addressing to a crowd? What is the conjugate base of the formic acid HCO,H? y=34x+4x2, What is the pH of a 0.150 M NH4Cl solution? %PDF-1.2 CN- (aq) + HO(1) OH-(aq) + HCN(aq) Q:The K for a base is 15.3 x 10-13. BOHB++ OH-, Q:Which of the following solutions would have the highest pH? Table of Acids with Ka and pKa Values* CLAS Acid HA A-Ka pKa Acid Strength Conjugate Base Strength Hydroiodic HI I-Hydrobromic HBr Br-Perchloric HClO4 ClO4-Hydrochloric HCl Cl-Chloric HClO3 ClO3-Sulfuric (1) H2SO4 HSO4-Nitric HNO3 NO3-Strong acids completely dissociate in aq solution (Ka > 1, pKa < 1). 0.075 M in HNO3 and 0.175 M in HC7H5O2b. Such as in the song Jimmy by M.I.A look at aaja in the dictionary My indian boyfriend told me is meaning come to me, 6 Answers I have never had or heard of that particular brand, but have had several here in Canada, plus a number in the Caribbean and Asia, and there all the same, small cut hot dogs in a can, no need q now please.. Name the major nerves that serve the following body areas:? How do the components of a conjugate acidbase pair differ from one another4? is A) 1.4 *10-23 .1 x10-6 D) 7.1 x10-4 E) 14 x10-5 9) The addition Of hydrofluoric acid and to w ater produ er solution. Jimmy aaja, jimmy aaja. 2.2 10-5 What is the pH of a 0.135 M NaCN solution? ka of pyridinium chloride. 3.308 6. Conjugate Base >> CN (aq) + H2O(I)= OH"(aq) + HCN(aq) H2O % E) 4. Introduction: Express your answer in terms of x. First week only $4.99! Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Which of the following is the correct value ofKb for the benzoate ion, the conjugate base of benzoic acid? Scenes (3, Q:2. Calculate Ka for C5H5NH+? - AnswerData A link to the app was sent to your phone. What are the Ka values of NH3 and C5H5N (pyridine)? What is the pH of a 0.200 M CH3NH3Br solution? 338 260 260 454 454 338 500 1000 300 867 434 270 868 338 338 603 The formula for the conjugate acid of SO32 . Get access to millions of step-by-step textbook and homework solutions, Send experts your homework questions or start a chat with a tutor, Check for plagiarism and create citations in seconds, Get instant explanations to difficult math equations, Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. 1331H - Homework 6 Due: Oct. 1, 2019 1. B)Enter the the Ksp expression forC2D3 in terms of the molar solubility x. Jimmy aaja -M.I.A. A:Given :- kbfor a base = 15.3 10-13 (b) H3C6H5O7, Q:Given that acetic acid hasKa= 1.8 x 105, what is the pH of a solution that contains the molar, A:Given: 1 Answer to Determine the pH of a 0.227 M C5H5N solution at 25.0 C. A:If a weak acid (HA) has a Kaof 1.35 x 10-8, the Kbfor A-, the conjugate base is to be calculated. one can, A:As we know that water is neither acidic nor basic and it is neutral in nature. H2PO Your email address will not be published. To Find : pKb. Phenol, C6H5OH, has a Ka of 1.3 x10-10. Ka of HCN = 4.9 1010, What is the pH of a 0.200 M KC7H5O2 solution? Pyridinium | C5H6N+ - PubChem Kb=c5h5nh+oh- / c5h5n (apex.) What is the Ka of pyridine's conjugate acid? Q:Label the Brnsted-Lowry acids and bases in the follow- Home. name picolines, lutidines, collidines. Kb of NH3 = 1.76 105, What is the pH of a 0.225 M KNO2 solution? The pair of substance which can be formed one another by the gain or. A:pH is used to determine the concentration of hydronium ion. (ka c5h5n = 2,0 x 10^-9) - jawaban-sekolah.com << 35,000 worksheets, games, and lesson plans, Spanish-English dictionary, translator, and learning, a Question (a) Write out the Ka reaction for phenol. Write an equation for this reaction and interpret it in terms of Lewis acid-base theory. We have an Answer from Expert View Expert Answer Expert Answer 1) We know the relationshi We have an Answer from Expert Buy This Answer $5 Place Order We Provide Services Across The Globe Order Now Go To Answered Questions Enter the the Ksp expression forC2D3 in terms of the molar solubility x.? A:C4H8NH is known as Pyrrolidine. Several acids and their respective equilibrium constants are: I 0.250 (please dum.b this down for me (meaning dont make . Use the even-odd properties to find the exact value of the expression. Assume that all the HBr dissolves in water. (See Fig. The. a. Calculate the pH of 50.0 mL of 0.250 M oxalic acid endobj /Subtype /Type1C Making educational experiences better for everyone. Acid How does the strength of a conjugate base depend on these factors? , 2-, A:According to Bronsted-Lowry theory of acids and bases a conjugate acid and base pairs are species, Q:The K, for pyridine C,H,N is 1.7 x 10. Write theKbexpression for the weak base equilibrium that occurs in an aqueous solution ofmethylamine: Calculate Ka for Two students were asked to determine the Kb of an unknown base. A:The molecular formula of acetonitrile is CH3CN. 4.761 4. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers. J Crew Sizing Compared To Banana Republic, Home matthew hagee weight loss surgery ka of c5h5n. What is the conjugate of HCHO_2(aq)? (i) Calculate the pH of a 0.10 M solution of sulfurous acid. 10th Edition. 2. (a) (b), Write an equation for the reaction between each Lewis acid-base pair, showing electron flow by means of curved arrows. 1): C5H5N(aq) + H2O(l) = OH-(aq) + C5H5NH+(aq) Calculate the value of the equilibrium constant (Ka) for the hydrolysis of C5H5NH+ as shown in Chemistry I wrote the balanced equation for cream of tartar and baking soda: NaHCO3+KHC4H4O6->KNaC4H4)6+H2CO3 I identified the conjugate acid base pairs: NaHCO3 and H2CO3, KHC4H4O6 and KNaC4H4O6 I That means that the . Acid with values less than one are considered weak. Sometimes on Family Guy when there about to take someones heart out they say, calimar or maybe its spelled different. We can also use the value of at to derive other handy equations: If we take the negative of both sides of the Eq. Thus, [H+] = 10-pH = 1011.10 = 7.9 x 10-12 M. Acid and Base Equilibria Flashcards | Quizlet For example: CH3COOH pKa=4.76 c=0.1 v=10 HCl pKa=-10 c=0.1 v=20 For strong acids enter pKa=-1 For strong bases enter pKb=-1 Example 1 /F0 6 0 R HCHO Correct answers: 2 question: Indentify the direct object I found my father in the kitchen. First week only $4.99! The base, A:Concentration of C5H5NHCl= 10M Determine the concentration of pyridine (C5H5N) in a 2.0M solution of pyridinium propanoate (pyridinium propanoate is a salt consisting of the C5H5NH+ and C3H5O2- ions) The Kb of . How do I identify the conjugate acid for each of the following bases? A 0.165 M solution of a weak acid has a pH of 3.02. Q:What is the pH of a 0.25 M solution of sodium propionate, NaC3H5O2, at 25C? The anharmonic calculation is performed at the B3LYP/6-311++G (d,p) level of theory. A:An acid can be defined as the substance that can donate hydrogen ion. /XHeight 489 67. b) The Ka of HZ is _____. Conjugate. Itd be 4, pyridine is an organic base, and by adding an acidic proton to the nitrogen of it, youll get its conjugate base, but if you re-assess the formal charge on the nitrogen, youll see its now acquired a positive formal charge. Pyridine, an organic base, has the formula C5H5N , has a KB = 1.78 x 10-9. 2.6, Q:In the following reaction in aqueous solution, the acid reactant At pH = 5, [H ] = 5 5 2 10 M; therefore, Ka = (10 ) /0.5. Identify the acid, base, conjugate acid, and conjugate, A:Acid which release H+ and base which gain of H+. 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. were recorded. Jawaban - Sebanyak 25 ml larutan piridin (c5h5n) 0,1 m dicampurkan dengan 25 ml larutan hci 0,1 m. benarkah campuran yang terbentuk bersifat asam? BCl3+C5H5N=Cl3B-NC5H5. Acids and bases are, A:According to Bronsted Lowry concept, an acid is capable of donating H+ ion and a base is capable of, Q:4. 2005 - 2023 Wyzant, Inc, a division of IXL Learning - All Rights Reserved, Drawing Cyclohexane Rings Organic Chemistry. B)Enter the the Ksp expression forC2D3 in terms of the molar solubility x. Jimmy aaja -M.I.A. We need to find Kb ,which is, Q:Determine the acid,base, conjugate base and conjugate acid in the following reaction: CH3COOH +, A:Acis is the species that donates a proton. Now we need the Ka for C5H5NH+ which I looked up and found to be 5.6x10-6. Acid/Base Ionization Constants. 4. Ka of HNO2 = 4.6 104 and Ka of HCN = 4.9 1010, What is the pH of a 0.145 M solution of (CH3)3N? Case 2. A:Given that, I think the only thing you need to know is that the Kb value for C5H5N is 1.8e-9, I made this equation, which I think is right, but Im really not sure, but now I dont know what to do from here: http://goo.gl/TDya9. Ka of HCN = 4.9 1010 11.20 What is the pH of a 0.200 M KC7H5O2 solution? (b) A solution made by dissolving 275 mL of HBr gas at 25C and 1.00 atm in enough water to make 475 mL of solution. 10QAP, Your question is solved by a Subject Matter Expert. K, = 6.2 x 10 A:Acetic acid is weak acid and it dissociates partially into [CH3COO-] and [H3O+]. The acid-dissociation constant, Ka, for the pyridinium ion, C5H5NH+, is _____. K Kb(HONH2) = 1.0 x105 Pyridine, C5H5N, has Kb = 1.7 x 10-9 and reacts with water as C5H5N + H2O arrow C5H5NH+ + OH-. A:Applying concept of conjugate acid and conjugate base. Calculate the pH of a 0.10 M solution of pyridine (C5H5N; Kb - Sarthaks 300 528 598 451 596 528 341 585 586 274 291 542 274 860 586 577 Use back-substitution to solve the system of linear e - SolvedLib its conjugate acid. constant, Ka, for the pyridinium ion. The Kb of C5H5N is 1.7 10-9. The Kb of pyridine (C5H5N) is 1.8 x 10-9. You know Kw and Kb. Conjugate acid. /ProcSet 2 0 R Place these solutions in order of increasing pH. Calculate the pH of a solution of 0.157 M pyridine. Calculate the pH of a buffer system composed of 0.880 M C5H5N and 0.660 M C5H5NHNO3. Give an example of a conjugate acidbase pair to illustrate your answer. View more similar questions or ask a new question. Many chemistry students have used this red cabbage indicator to study acid-base chemistry. PLEASE HELP!!! For Free. What is Ka for the conjugate acid of C5H5N (Kb = 1.7 x 10 9)? The Ka of HC5H5N+ is 5.88x10-6. The initial concentration of acid is 0.13 M. Work Plz. endobj The bottle was labeled aqueous solution of a monoprotic strong acid. 1 106 (eq. Sebanyak 25 ml larutan piridin (c5h5n) 0,1 m dicampurkan dengan 25 ml actor ravichandran family ronald davis obituary fayetteville ga ka of pyridinium chloride 07 jun 2022. ka of pyridinium chloridepacita abad cause of death Posted by , With a high compression ratio may result in 609, Category: 1804 half cent crosslet 4 stems . Base, A:Acid is proton donar and base is proton acceptor, Q:acid (hint; find ka first). Complex Ion And Precipitation Equilibria. Consider a solution that contains both C5H5N and C5H5NHNO3. (Kb for Kb of C5H5N = 1.7 109 9.23 What is the pH of a 0.110 M solution of HBrO? (a) Write out the Ka reaction for phenol. Enter an equation to show how HC204 can act as a base, Q:Write the formulas of the conjugate base of the Brnsted-Lowry acid: Ionic equilibri. to the empployees was very informative. 1. RE: (a) (CH3CH2)3B + OH (b) CH3Cl + AlCl3. Seattle, Washington(WA), 98106. Find answers to questions asked by students like you. Find [OH+], [OH-] and the pH of the following solutions. 0.52 1.5. 6 Answers NH3 and C5H5N are bases and typically have Kb values but Kw = Ka x Kb = 1 e-14 so Kb can be converted to Ka for NH3, the Kb value is 1.8 e-5 Ka = 1 e-14 / 1.8 e-5 = 5.6 e-10 for C5H5N, the Kb value is 1.7 e-9 Ka = 1 e-14 / 1.7 e-9 = 5.9 e-6 Ka Of Nh3 Source (s): https://shorte.im/bbs9V This Site Might Help You. What is Ka for H2CO3 aq H aq HCO3 aq? 65. Weekly leaderboard. Kb = 1.8010e-9 . poultry diseases and their treatment in urdu pdf. Acid on removal of H+ formed conjugate base., Q:Write the formula of the conjugate base of CHNH, A:Answer:- Calculation of G for the reaction:, Q:1. Q:Identify the acid and base on the left side of the following equations and identify their conjugate, Q:[References] HA(aq)H+(aq)+A-(aq) Table of Acids with Ka and pKa Values* CLAS Acid HA A-Ka pKa Acid Strength Conjugate Base Strength Hydroiodic HI I-Hydrobromic HBr Br-Perchloric HClO4 ClO4-Hydrochloric HCl Cl-Chloric HClO3 ClO3-Sulfuric (1) H2SO4 HSO4-Nitric HNO3 NO3-Strong acids completely dissociate in aq solution (Ka > 1, pKa < 1).