For CO2 in the atmosphere at 25 degrees C, kH = 3.4 x 10-2 mol L-1 atm-1 and the partial pressure of CO2 is .000405 atm: Calculate the concentration of dissolved H2CO3 (aq) air-saturated rainwater. Determine the pH expected for rainwater on the basis of the first dissociation constant of the carbonic acid, H2CO3 (aq), from the dissolved CO2. The pKa values of carbonic acid are pKa1 = 6.35 and pKa2 = 10.33 at 25 C.

For CO2 in the atmosphere at 25 degrees C, kH = 3.4 x 10-2 mol L-1 atm-1 and the partial pressure of CO2 is .000405 atm: Calculate the concentration of dissolved H2CO3 (aq) air-saturated rainwater. Determine the pH expected for rainwater on the basis of the first dissociation constant of the carbonic acid, H2CO3 (aq), from the dissolved CO2. The pKa values of carbonic acid are pKa1 = 6.35 and pKa2 = 10.33 at 25 C.

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter18: Electrochemistry

Section: Chapter Questions

Problem 18.103QE

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