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EX) Find the pH,[OCl], and [HOCl] in a solution, containing 104M of sodium hypochlorite ( NaOCl), and 5104M of hypochlorous acid (HOClpKa=7.5) at 25C; neglect
EX) Find the pH,[OCl], and [HOCl] in a solution, containing 104M of sodium hypochlorite ( NaOCl), and 5104M of hypochlorous acid (HOClpKa=7.5) at 25C; neglect ionic effect. (1) Species: [Na+],[H+],[HOCl],[OCl], and [OH] (2) EQ1: H2OH++OH;Kw=1014=[H+][OH] (3) Dissociation: NaOClNa++OCl (4) EQ2: HOClOCl+H+;Ka=107.5=[OCl][H+]/[HOCl] (5) MB1: CT,Na=[Na+]=104M (6) MB2: CT,OCl=[HOCl]+[OCl]=1.5104M (7) CB:[Na+]+[H+]=[OCl]+[OH] EX) Find the pH,[OCl], and [HOCl] in a solution, containing 104M of sodium hypochlorite ( NaOCl), and 5104M of hypochlorous acid (HOClpKa=7.5) at 25C; neglect ionic effect. (1) Species: [Na+],[H+],[HOCl],[OCl], and [OH] (2) EQ1: H2OH++OH;Kw=1014=[H+][OH] (3) Dissociation: NaOClNa++OCl (4) EQ2: HOClOCl+H+;Ka=107.5=[OCl][H+]/[HOCl] (5) MB1: CT,Na=[Na+]=104M (6) MB2: CT,OCl=[HOCl]+[OCl]=1.5104M (7) CB:[Na+]+[H+]=[OCl]+[OH]
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Fundamentals Of Momentum Heat And Mass Transfer
Authors: James Welty, Gregory L. Rorrer, David G. Foster
6th Edition
1118947460, 978-1118947463
