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Calculate the pH of rainwater in equilibrium with atmospheric CO2, knowing that for the present-day atmosphere, Pco2 = 10-3.5 atm, and at 25 degrees Celsius, the Henry's law constant Kµ 6.35, K22 = 10-10.33 and Kw = 10-14. Proceed as follow: 10-1.47, Kal = 10- %3D Write the 3 equations describing the carbonate cycles that would control the pH of the rain Write the equilibrium constant expressions for each of these equations Rewrite a charge balance equation in terms of [H*] and known quantities such as the equilibrium constants and Pco2 and solve for pH. Don't forget to consider water dissociation in your calculations. You can assume that [CO?]<< [HCO;] in natural water to simplify your equation.

Calculate the pH of rainwater in equilibrium with atmospheric CO2, knowing that for the present-day atmosphere, Pco2 = 10-3.5 atm, and at 25 degrees Celsius, the Henry's law constant Kµ 6.35, K22 = 10-10.33 and Kw = 10-14. Proceed as follow: 10-1.47, Kal = 10- %3D Write the 3 equations describing the carbonate cycles that would control the pH of the rain Write the equilibrium constant expressions for each of these equations Rewrite a charge balance equation in terms of [H*] and known quantities such as the equilibrium constants and Pco2 and solve for pH. Don't forget to consider water dissociation in your calculations. You can assume that [CO?]<< [HCO;] in natural water to simplify your equation.

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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Calculate the pH of rainwater in equilibrium with atmospheric CO2, knowing that for the present-day atmosphere, Pco2 = 10-3.5 atm, and at 25 degrees Celsius, the Henry's law constant Kµ = 10-1.47, Kal = 10- 6.35, K2 = 10-10.33 and Kw = 10-14. Proceed as follow: %3D %3D Write the 3 equations describing the carbonate cycles that would control the pH of the rain Write the equilibrium constant expressions for each of these equations Rewrite a charge balance equation in terms of [H*] and known quantities such as the equilibrium constants and Pco2 and solve for pH. Don't forget to consider water dissociation in your calculations. You can assume that [CO?]<< [HCO;] in natural water to simplify your equation.
Transcribed Image Text:Calculate the pH of rainwater in equilibrium with atmospheric CO2, knowing that for the present-day atmosphere, Pco2 = 10-3.5 atm, and at 25 degrees Celsius, the Henry's law constant Kµ = 10-1.47, Kal = 10- 6.35, K2 = 10-10.33 and Kw = 10-14. Proceed as follow: %3D %3D Write the 3 equations describing the carbonate cycles that would control the pH of the rain Write the equilibrium constant expressions for each of these equations Rewrite a charge balance equation in terms of [H*] and known quantities such as the equilibrium constants and Pco2 and solve for pH. Don't forget to consider water dissociation in your calculations. You can assume that [CO?]<< [HCO;] in natural water to simplify your equation.
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