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Reie CanstarPeriodis Goat rstand the relation between the strength of an acid or a base and its pk, and pk values Another way to express acid strengh is by using pk. ree to which a weak acid dissociates in solution is given by its acidoncation constant, K For the weak acid. HA. pK. -- log K. HA(aq) A (aq) + H'(aq) Another way to express base strength is by using pks acid-ionization constant is given by pk-log K JA K. - Part A the degree to which a weak base reacts with HO in solution is given by its base-ionization constant the generic weak base. I. B(ag) + H,00) B' (a) + OH () Anew potential heart medicine. code-named X-281, is being tesed by a pharmaceutical company. Pharma-pil As a research technician at Pharma-pil you are toid that X-281 isa monoprotic weak acid. but because of security concems, the actual chemical form must remain top secret. The company is interested in the drug's K value because only the dissociated form of the chemical is active in preventing cholesterol buildup in arteries base-ionization constant is given by To find the pK. of X-281. you prepare a 0.093 Mest solution of X-281 a 250 "C. The pH of the solution is denemined to be 3.00. What is the pK. of X-281? Express your answer numerically. View Available Hint{s) go tt kayboard shortous ep pK.- 3.70 Submit Prev An X Incorrect: Try Again: 5 attempts remaining

Reie CanstarPeriodis Goat rstand the relation between the strength of an acid or a base and its pk, and pk values Another way to express acid strengh is by using pk. ree to which a weak acid dissociates in solution is given by its acidoncation constant, K For the weak acid. HA. pK. -- log K. HA(aq) A (aq) + H'(aq) Another way to express base strength is by using pks acid-ionization constant is given by pk-log K JA K. - Part A the degree to which a weak base reacts with HO in solution is given by its base-ionization constant the generic weak base. I. B(ag) + H,00) B' (a) + OH () Anew potential heart medicine. code-named X-281, is being tesed by a pharmaceutical company. Pharma-pil As a research technician at Pharma-pil you are toid that X-281 isa monoprotic weak acid. but because of security concems, the actual chemical form must remain top secret. The company is interested in the drug's K value because only the dissociated form of the chemical is active in preventing cholesterol buildup in arteries base-ionization constant is given by To find the pK. of X-281. you prepare a 0.093 Mest solution of X-281 a 250 "C. The pH of the solution is denemined to be 3.00. What is the pK. of X-281? Express your answer numerically. View Available Hint{s) go tt kayboard shortous ep pK.- 3.70 Submit Prev An X Incorrect: Try Again: 5 attempts remaining

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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<Chapter 16 - Attempt 3 Item 12 (< 12 of 18 I Review | Constants | Periodic Table Leaming Goal: To understand the relation between the strength of an acid or a base and its pKa and pKb values. Another way to express acid strength is by using pKa The degree to which a weak acid dissociates generic weak acid, HA, solution is given by its acid-ionization constant, K. For the pK, = - log K, HA(aq) - A (aq) + H'(aq) Another way to express base strength is by using pKb: and the acid-ionization constant is given by pKp = - log KD [A H K. HA Part A Similariy, the degree to which a weak base reacts wvith H20 in solution is given by its base-ionization constant, Kp. For the generic weak base, B. B(aq) + H20(1) - BH (aq) + OH (aq) Anew potential heart medicine, code-named X-281, is being tested by a pharmaceutical company, Pharma-pill. As a research technician at Pharma-pill, you are told that X-281 is a monoprotic weak acid, but because of security concerns, the actual chemical formula must remain top secret. The company is interested in the drug's Ka value because only the dissociated form of the chemical is active in preventing cholesterol buildup in arteries. and the base-ionization constant is given by To find the pKa of X-281, you prepare a 0.093 M test solution of X-281 at 25.0 °C. The pH of the solution is detemined to be 3.00. What is the pKa of x-281? BH JOH Къ Express your answer numerically. • View Available Hint(s) Templates Symbols undo redo Test keyboard shortcuts Help pK = 3,70 Submit Prevloue Anawere X Incorrect; Try Again; 5 attempts remaining
Transcribed Image Text:<Chapter 16 - Attempt 3 Item 12 (< 12 of 18 I Review | Constants | Periodic Table Leaming Goal: To understand the relation between the strength of an acid or a base and its pKa and pKb values. Another way to express acid strength is by using pKa The degree to which a weak acid dissociates generic weak acid, HA, solution is given by its acid-ionization constant, K. For the pK, = - log K, HA(aq) - A (aq) + H'(aq) Another way to express base strength is by using pKb: and the acid-ionization constant is given by pKp = - log KD [A H K. HA Part A Similariy, the degree to which a weak base reacts wvith H20 in solution is given by its base-ionization constant, Kp. For the generic weak base, B. B(aq) + H20(1) - BH (aq) + OH (aq) Anew potential heart medicine, code-named X-281, is being tested by a pharmaceutical company, Pharma-pill. As a research technician at Pharma-pill, you are told that X-281 is a monoprotic weak acid, but because of security concerns, the actual chemical formula must remain top secret. The company is interested in the drug's Ka value because only the dissociated form of the chemical is active in preventing cholesterol buildup in arteries. and the base-ionization constant is given by To find the pKa of X-281, you prepare a 0.093 M test solution of X-281 at 25.0 °C. The pH of the solution is detemined to be 3.00. What is the pKa of x-281? BH JOH Къ Express your answer numerically. • View Available Hint(s) Templates Symbols undo redo Test keyboard shortcuts Help pK = 3,70 Submit Prevloue Anawere X Incorrect; Try Again; 5 attempts remaining
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