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Ka1 = 1,0 × 10-4 and Ka2 = 1.0 × 10 6 Express your answers in molarity to two significant figures separated by a comma. IV| ΑΣΦ | Templates [H3O+], [H3O+ ]2 = 3.7• 10 3,4.9 • 10 ? M

Ka1 = 1,0 × 10-4 and Ka2 = 1.0 × 10 6 Express your answers in molarity to two significant figures separated by a comma. IV| ΑΣΦ | Templates [H3O+], [H3O+ ]2 = 3.7• 10 3,4.9 • 10 ? M

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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Take a look these some of incorrect please show all work calculate formula
MISSED THIS? Read Section 17.9 (Pages 765-769). Consider a 0.14 M solution of a weak polyprotic acid (H₂A) with the possible values of Kal and Ka2 given here. Calculate the contributions to [H3O+] from each ionization step. At what point can the contribution of the second step be neglected? Part B Kal = 1.0 x 10-4 and Ka2 = 1.0 x 10-5 Express your answers in molarity to two significant figures separated by a comma. ΠΟΠ ΑΣΦ Templates [H3O+]1, [H3O+]2= 3.7 10,4.9. 107 wwwww ? M
Transcribed Image Text:MISSED THIS? Read Section 17.9 (Pages 765-769). Consider a 0.14 M solution of a weak polyprotic acid (H₂A) with the possible values of Kal and Ka2 given here. Calculate the contributions to [H3O+] from each ionization step. At what point can the contribution of the second step be neglected? Part B Kal = 1.0 x 10-4 and Ka2 = 1.0 x 10-5 Express your answers in molarity to two significant figures separated by a comma. ΠΟΠ ΑΣΦ Templates [H3O+]1, [H3O+]2= 3.7 10,4.9. 107 wwwww ? M
X Incorrect; Try Again; 3 attempts remaining You have correctly determined the contribution to [H3O+] from the first ionization step. To determine the contribution to [H3O+] from the second ionization step, prepare an ICE table (where I represents initial, C represents change, and E represents equilibrium), showing the change in the H3O+ concentration with the variable y and defining the equilibrium concentrations in terms of the concentrations produced in the first step and the variable y. Substitute these expressions into the expression for Ka2: Solve it for y. Ka2 = [H3O+][A²-] [HA-]
Transcribed Image Text:X Incorrect; Try Again; 3 attempts remaining You have correctly determined the contribution to [H3O+] from the first ionization step. To determine the contribution to [H3O+] from the second ionization step, prepare an ICE table (where I represents initial, C represents change, and E represents equilibrium), showing the change in the H3O+ concentration with the variable y and defining the equilibrium concentrations in terms of the concentrations produced in the first step and the variable y. Substitute these expressions into the expression for Ka2: Solve it for y. Ka2 = [H3O+][A²-] [HA-]
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