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A chemist titrates 20.0 mL of 0.20 M HBrO (see Appendix) with 0.10 M NaOH. What is the pH: a) before any base id added? b) when [HBrO] = [BrO-]? c) at equivalence point? d) when the amount (mol) of OH- added is twice the amount of HBrO present initially?

A chemist titrates 20.0 mL of 0.20 M HBrO (see Appendix) with 0.10 M NaOH. What is the pH: a) before any base id added? b) when [HBrO] = [BrO-]? c) at equivalence point? d) when the amount (mol) of OH- added is twice the amount of HBrO present initially?

Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter21: Chemistry Of The Nonmetals
Section: Chapter Questions
Problem 11QAP
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A chemist titrates 20.0 mL of 0.20 M HBrO (see Appendix) with 0.10 M NaOH. What is the pH:

a) before any base id added?

b) when [HBrO] = [BrO-]?

c) at equivalence point?

d) when the amount (mol) of OH- added is twice the amount of HBrO present initially?

Iable of Acida with Kand pkavalues Acid HA pKa Hydronisem ion lodic H-O 10 HC O HSO SO CIO H,PO HASO CH-CICOO HGHO 0.0 HIO HCO H,SO HSO HCIO H,PO HASO CH-CICOOH HCH O HF HNO HCOOH 16x 10 5.9 х 10 1.54 x 10 12x 10 1.1x 10 7.52x 10 0.80 Oxalic (1) Sulfurous (1) Sulfaric (2) 1.23 1.81 1.92 Chlorous 1.96 Phosphoric (1) Arsenic (1) Chloroacetic Citric (1) Hydroflooric Nitrous 2.12 2.30 5,0x 10 1,4x 10 8.4x 10 7.2x 10 4.0 x 10 1.77 x 10 2.85 3,08 3.14 3.39 3.75 NO Formic HCOO 1.38 x 10 7.9x 10 6.46 x 10 6,4x 10 HCH H-O CH H O HC,HOj GH;COO CO Ny HC HO/ CHCOO CH-CH-COO CHAN CHO HCO Lactic Ascorbic (1) 3.86 4.10 CH;COOH HC-O HN HCH O CH;COOH CHCH-COOH CHẠNH" HC,H,O H-CO, HSO HASO H;5 Benzoic 4.19 Oxalic (2) Hydrazoic Citric (2) 4.19 1.9x 10 4,72 1.5 x 10 1.76 x 10 1.34x 10 5.6x 10 4,0x 10 43x 10 1.02 x 10 S/9.3 x 10 1.0x 10 9.1 x 10 6.23 x 10 3.5/3.0x 10 2x10 6.17x 10 5.5x 10 5.6 x 10 1.6x 10 4.8x 10 2x 10 6.0 x 103.0 x 10 24x 10 4.74 Acetic 4.75 Propionic Pyridiniun ion Citric (3) Carboeic (1) Sulfurous (2) Arsenic (2) Hydrosnlfaric Phosphoric (2) Hypochlorous Hypobromeus Hydrocyanic Boric (1) Ammonium jon Phenol Carbonic (2) Hypoiodous Anenic (3) Hydrogen peroxide Ascorbic (2) Phosphoric (3) Water 4.87 5.25 5,40 6,37 6,91 7.10/7.03 7/7.04 7.21 7.46/7.53 8.70 9.21 9.23 9.25 HASO HS HPO CIO H-PO HCIO HBrO HCN BrO CN HBO NH CH;OH HCO HIO HAIO, HBO NHỊ CHO CO 9.80 10.32 10.70 Aso HO 9.22/11.53 11.62 CHO PO 11.80 HC HO HPO HO 1.6x 10 4.8/2.2x 10 1.0x 10 12.32/12.66 14.0
Transcribed Image Text:Iable of Acida with Kand pkavalues Acid HA pKa Hydronisem ion lodic H-O 10 HC O HSO SO CIO H,PO HASO CH-CICOO HGHO 0.0 HIO HCO H,SO HSO HCIO H,PO HASO CH-CICOOH HCH O HF HNO HCOOH 16x 10 5.9 х 10 1.54 x 10 12x 10 1.1x 10 7.52x 10 0.80 Oxalic (1) Sulfurous (1) Sulfaric (2) 1.23 1.81 1.92 Chlorous 1.96 Phosphoric (1) Arsenic (1) Chloroacetic Citric (1) Hydroflooric Nitrous 2.12 2.30 5,0x 10 1,4x 10 8.4x 10 7.2x 10 4.0 x 10 1.77 x 10 2.85 3,08 3.14 3.39 3.75 NO Formic HCOO 1.38 x 10 7.9x 10 6.46 x 10 6,4x 10 HCH H-O CH H O HC,HOj GH;COO CO Ny HC HO/ CHCOO CH-CH-COO CHAN CHO HCO Lactic Ascorbic (1) 3.86 4.10 CH;COOH HC-O HN HCH O CH;COOH CHCH-COOH CHẠNH" HC,H,O H-CO, HSO HASO H;5 Benzoic 4.19 Oxalic (2) Hydrazoic Citric (2) 4.19 1.9x 10 4,72 1.5 x 10 1.76 x 10 1.34x 10 5.6x 10 4,0x 10 43x 10 1.02 x 10 S/9.3 x 10 1.0x 10 9.1 x 10 6.23 x 10 3.5/3.0x 10 2x10 6.17x 10 5.5x 10 5.6 x 10 1.6x 10 4.8x 10 2x 10 6.0 x 103.0 x 10 24x 10 4.74 Acetic 4.75 Propionic Pyridiniun ion Citric (3) Carboeic (1) Sulfurous (2) Arsenic (2) Hydrosnlfaric Phosphoric (2) Hypochlorous Hypobromeus Hydrocyanic Boric (1) Ammonium jon Phenol Carbonic (2) Hypoiodous Anenic (3) Hydrogen peroxide Ascorbic (2) Phosphoric (3) Water 4.87 5.25 5,40 6,37 6,91 7.10/7.03 7/7.04 7.21 7.46/7.53 8.70 9.21 9.23 9.25 HASO HS HPO CIO H-PO HCIO HBrO HCN BrO CN HBO NH CH;OH HCO HIO HAIO, HBO NHỊ CHO CO 9.80 10.32 10.70 Aso HO 9.22/11.53 11.62 CHO PO 11.80 HC HO HPO HO 1.6x 10 4.8/2.2x 10 1.0x 10 12.32/12.66 14.0
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