How does pH level change the concentration of dissolved oxygen (DO) in sea water?
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The equilibrium of dissolved-to-gas-phase oxygen is not affected by the aqueous hydronium ion concentration ($\ce{H3O+}$), and thus the pH of water does not affect dissolved oxygen concetrations of sea water.
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Sabudum
Updated on August 01, 2022Comments
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Sabudum over 1 year
I am planning to investigate the relationship between $\mathrm{pH}$ and dissolved oxygen.
I would like to have a reason without taking in account the plants, animals and decomposer roles.
I want to know if $\mathrm{pH}$ affects the concentration of dissolved oxygen. For example:
If I added $\ce{HCl}$ to water, would the concentration of DO change? In same way, if I add $\ce{NaOH}$, would the concentration of DO change?
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Ivan Neretin over 7 yearsIn short: no, it does not, at least until you reach the truly extreme concentrations.
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