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Answer to Question #81853 in General Chemistry for Heather
Question #81853
Solve for O2(aq). Because we will have measured pH directly, we can use that value and an assumption of equilibrium with pyrite to calculate the dissolved oxygen (O2(aq)) with the following reaction and your observed chemistry:
FeS2 + 3.5O2 + H2O = Fe2+ +2SO42- + 2 H+ Log K = 217.4
pH = 6.6
FeS2 + 3.5O2 + H2O = Fe2+ +2SO42- + 2 H+ Log K = 217.4
pH = 6.6
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