Carbonic acid, H 2CO 3, is a diprotic acid whose Ka1 = 4.3 x 10 - and K a2 = 5.6 x 10 -11. Determine the concentration of CO 3 2- ions in a 0.18 MH 2CO 3 solution. A. 4.3 x 10-7 M В. 3.2 х 10-6 м С. 6.9х 10-8 м D. 5.6 x 10-11 M Е. 2.8 х 10-4 м

Carbonic acid, H 2CO 3, is a diprotic acid whose Ka1 = 4.3 x 10 - and K a2 = 5.6 x 10 -11. Determine the concentration of CO 3 2- ions in a 0.18 MH 2CO 3 solution. A. 4.3 x 10-7 M В. 3.2 х 10-6 м С. 6.9х 10-8 м D. 5.6 x 10-11 M Е. 2.8 х 10-4 м

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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Tartaric acid is found in many fruits including grapes. Tartaric acid is partly responsible for the dry texture of certain wines. Tartaric acid, H₂C4H406, is a diprotic acid with the following Ka values: Kal = 1.00 x 10-³; K₁2 = 4.60 x 10-5 a. Write the equation for the 1st ionization of tartaric acid. b. Write the equation for the 2nd ionization of tartaric acid. c. Write the Ka expression for the 1st ionization. d. Write the Ka expression for the 2nd ionization. e. What is the equilibrium concentrations of the reactants and products from the 1st ionization of a 0.250M solution of tartaric acid? f. What is the equilibrium concentrations of the reactants and products from the 2nd ionization? g. What is the total [H3O+] and the overall pH of the solution of tartaric acid?
Tartaric acid is found in many fruits including grapes. Tartaric acid is partly responsible for the dry texture of certain wines. Tartaric acid, H₂C4H406, is a diprotic acid with the following Ka values: Ka1 = 1.00 x 10-3; K₁2 = 4.60 x 10-5 a. Write the equation for the 1st ionization of tartaric acid. b. Write the equation for the 2nd ionization of tartaric acid. c. Write the Ka expression for the 1st ionization. d. Write the Ka expression for the 2nd ionization. e. What is the equilibrium concentrations of the reactants and products from the 1st ionization of a 0.250M solution of tartaric acid? f. What is the equilibrium concentrations of the reactants and products from the 2nd ionization? g. What is the total [H3O+] and the overall pH of the solution of tartaric acid?
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The H⁺ concentration in an aqueous solution at 25 °C is 5.9 × 10⁻⁴. What is [OH⁻]?
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A. What is the pH of an aqueous solution with a hydrogen ion concentration of [H+]=7.2×10−5[H+]=7.2×10−5 M? B. What is the hydroxide ion concentration, [OH−][OH−], in an aqueous solution with a hydrogen ion concentration of [H+]=7.2×10−5[H+]=7.2×10−5 M? C. A monoprotic weak acid, HAHA, dissociates in water according to the reaction HA(aq)↽−−⇀H+(aq)+A−(aq)HA(aq)↽−−⇀H+(aq)+A−(aq) The equilibrium concentrations of the reactants and products are [HA]=0.120 M[HA]=0.120 M, [H+]=3.00×10−4 M[H+]=3.00×10−4 M, and [A−]=3.00 ×10−4 M[A−]=3.00 ×10−4 M. Calculate the ?aKa value for the acid HA.