Oceanic uptake of carbon dioxide is thus described:CO2 (g) + H2O ⇔ H2CO3, K = [H2CO3]/PCO2 = 3 x 10-2 M atm-1 H2CO3 ⇔ HCO3- + H+, K = [HCO3-][H+]/[H2CO3] = 9 x 10-7 moles/LHCO3- ⇔ CO32 - + H+, K = [CO32 -][H+]/[HCO3-] = 7 x 10-10 moles/LCharge balance equation:[H+] = [OH-] + [HCO3-] + 2[CO32 ] If the CO2 concentration in the atmosphere is 300 ppm, what is the pH of the ocean?

In order to find the pH of ocean water hydrogen ion concentration should be known, pH value is…

Answered: Oceanic uptake of carbon dioxide is…

Introduction to General, Organic and Biochemistry

11th Edition

ISBN:9781285869759

Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Chapter6: Solutions And Colloids

Section: Chapter Questions

Problem 6.29P

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Oceanic uptake of carbon dioxide is thus described:
CO₂ (g) + H₂O ⇔ H₂CO₃, K = [H₂CO₃]/P_CO2 = 3 x 10^-2M atm^-1
H₂CO₃ ⇔ HCO₃^- + H⁺, K = [HCO₃^-][H+]/[H₂CO₃] = 9 x 10^-7 moles/L
HCO₃^- ⇔ CO₃² ^- + H⁺, K = [CO₃² ^-][H+]/[HCO₃^-] = 7 x 10^-10 moles/L
Charge balance equation:
[H+] = [OH-] + [HCO₃^-] + 2[CO₃² ]

If the CO₂ concentration in the atmosphere is 300 ppm, what is the pH of the ocean?

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