A water sample is collected. The water is in equilibrium with the atmosphere. The KH for CO2 is 10-1.5. Assume the CO2 content of the atmosphere is 400 ppm. The sample has a pH of 6.5. The pKa1 for H2CO3* is 6.3 and its pKa2 is 10.3. The alkalinity (in units of eq/L) of the water is:

A water sample is collected. The water is in equilibrium with the atmosphere. The KH for CO2 is 10-1.5. Assume the CO2 content of the atmosphere is 400 ppm. The sample has a pH of 6.5. The pKa1 for H2CO3* is 6.3 and its pKa2 is 10.3. The alkalinity (in units of eq/L) of the water is:

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter11: Solutions

Section: Chapter Questions

Problem 72AP

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A water sample is collected. The water is in equilibrium with the atmosphere. The K_H for CO₂ is 10^-1.5. Assume the CO₂ content of the atmosphere is 400 ppm. The sample has a pH of 6.5. The pK_a1 for H₂CO₃^* is 6.3 and its pK_a2 is 10.3.

The alkalinity (in units of eq/L) of the water is:

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