1. Arsenious acid a weak acid with pKa = 9.22. HASO2 H + AsO₂ K = 10-9.22 (a) If 103 M of the herbicide NaAsO2 are added to 1L of distilled water at 25 degrees C, what is the resulting pH? Please list species, list sufficient constraints to solve the system, draw a log C-pH diagram, and solve for the system pH both graphically and algebraically. Assume complete dissociation of the added salt. (15 points)

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1. Arsenious acid a weak acid with pKa = 9.22.
HASO2 H + AsO₂ K = 10-9.22
(a) If 103 M of the herbicide NaAsO2 are added to 1L of distilled water at 25 degrees C, what is the
resulting pH? Please list species, list sufficient constraints to solve the system, draw a log C-pH diagram,
and solve for the system pH both graphically and algebraically. Assume complete dissociation of the added
salt. (15 points)
Transcribed Image Text:1. Arsenious acid a weak acid with pKa = 9.22. HASO2 H + AsO₂ K = 10-9.22 (a) If 103 M of the herbicide NaAsO2 are added to 1L of distilled water at 25 degrees C, what is the resulting pH? Please list species, list sufficient constraints to solve the system, draw a log C-pH diagram, and solve for the system pH both graphically and algebraically. Assume complete dissociation of the added salt. (15 points)
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