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Show how phosphoric, H3PO4, dissociates in water and calculate the pH of a 0.030 M solution...

Show how phosphoric, H3PO4, dissociates in water and calculate the pH of a 0.030 M solution of the acid. Ka1 = 7.5 x 10-3; K a2 = 6.2 x 10-8; Ka3 = 4.8 x 10-13

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