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Using the E_h-pH diagram given in Figure 1, identify the origin of a water sample which was collected from an unknown aquatic system by determining the pH and Eh of the water using the step-by-step approach described below. Using the charge balance approach, determine the pH of this water when the following given. The pH of the water is dictated by propionic acid or HPr (chemical formula = CH_3CH_2COOH), which is an organic acid with a dissociation constant (K_a) of 10^4-87. The measured total concentration of this acid in the water sample is 10^-3M Determine the pE of this water if the in situ oxidation of propionic acid (CH_3CH_2COOH) to CO_2 is coupled with the production of 1.142 M of HS^- from sulfate () reduction reaction. The pE^0 of reduction reaction to HS^- is +4.20, and the determined total sulfate concentration in the water sample is 10 M Using the E_h-pH diagram provided below, identify the type/origin of this water sample
Using the E_h-pH diagram given in Figure 1, identify the origin of a water sample which was collected from an unknown aquatic system by determining the pH and Eh of the water using the step-by-step approach described below. Using the charge balance approach, determine the pH of this water when the following given. The pH of the water is dictated by propionic acid or HPr (chemical formula = CH_3CH_2COOH), which is an organic acid with a dissociation constant (K_a) of 10^4-87. The measured total concentration of this acid in the water sample is 10^-3M Determine the pE of this water if the in situ oxidation of propionic acid (CH_3CH_2COOH) to CO_2 is coupled with the production of 1.142 M of HS^- from sulfate () reduction reaction. The pE^0 of reduction reaction to HS^- is +4.20, and the determined total sulfate concentration in the water sample is 10 M Using the E_h-pH diagram provided below, identify the type/origin of this water sample
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