Slide 1Slide 2What is the pH (to 2 decimal places) when [H+] = 1 x 10-6 M pH = 6.00 5 x 10-3 M pH = 2.30 0.00089 M pH = 3.05 What is the pH (to 2 decimal places) when [OH–] = 1 x 10-6 M pH = 8.00 5 x 10-3 M pH = 11.70 0.00089 M pH = 10.95What is [H+] when pH = 2.00 0.01 or 1 x 10-2 M 10.00 1 x 10-10 M 7.11 7.76 x 10-8 M 11.68 2.09 x 10-12 MIndicate whether each of the above solutions are acidic, basic, or neutralAny pH < 7.00 is acidicAny pH > 7.00 is basicpH = 7.00 = neutralHomework Answers14 — 13 — 12 — 11 —10 — 9 —8 —7 —6 —5 —4 — 3 —2 —1 —0 l l l l lpHpKa = 2.12pKa = 7.21pKa = 12.67Add OH-bcadFirst write sequential equations for all 3 dissociation reactions.First reaction = First pKa, etc.Then add OH- and proceed rightward.[H3PO4] = [H2PO4-][H2PO4-] = [HPO4-2][HPO4-2] = [PO4-3]just HPO4-2just PO4-3just H2PO4-just H3PO4Answers for phosphoric acid titration
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