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If 0.826 moles of pyridine (Kb=1.70x10^-9) and 0.492 moles of hydrochloric acid are mixed with water...

If 0.826 moles of pyridine (Kb=1.70x10^-9) and 0.492 moles of hydrochloric acid are mixed with water to produce 500mL of solution; what will the pH be of the resulting system? Show all work

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