The pH of ocean water depends on the amount of atmospheric carbon dioxide. The dissolution of carbon
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The pH of ocean water depends on the amount of atmospheric carbon dioxide. The dissolution of carbon dioxide in ocean water can be approximated by the following chemical reactions (Henry’s Law constant for CO2 is KH = [CO2(aq)]/[CO2(g)] = 0.8317.) For reaction (2), K = 2.8 x 10-9:
(a) Use the equations above to determine the hydronium ion concentration as a function of [CO2(g)] and [Ca2+].
(b) During preindustrial conditions, we will assume that the equilibrium concentration of [CO2(g)] = 280 ppm and [Ca2+] = 10.24 mM. Calculate the pH of a sample of ocean water.
Transcribed Image Text:
CO2(g) — CO2(aq) (1) CaCO3(s) Ca²+ (aq) + CO3(aq) (2) H3O+ (aq) + CO3(aq) — HCO3(aq) + H₂O(1) (3) H3O+ (aq) + HCO3(aq) CO₂(aq) + 2 H₂O(1) (4) =
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a Determine the hydronium ion concentration as a function of CO2g and Ca2 From equation 1 we can exp...View the full answer
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Related Book For
General Chemistry Principles And Modern Applications
ISBN: 9780132931281
11th Edition
Authors: Ralph Petrucci, Jeffry Madura, F. Herring, Carey Bissonnette
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