1. 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? Table of Acids with Ka and pKa valuesAcidНАAКаpKaH;O*Hydronium ionIodicOxalic (1)Sulfurous (1)Sulfuric (2)HOIO;HC2O4HSO;10.01.6 x 1015.9 x 101.54 x 1021.2 x 1021.1 x 107.52 x 10*5.0 x 101.4 x 108.4 x 107.2 x 10*4.0 x 101.77 x 10*1.38 x 10*7.9 x 106.46 x 106.4 x 101.9 x 101.8 x 10°1.76 x 101.34 x 105.6 x 104.0 x 10*4.3 x 10"1.02 x 108/9.3 x 10*1.0 x 10-//9.1 x 10-86.23 x 103.5/3.0 x 10*2х 10%6.17 x 10105.8 x 10105.6 х 10101.6х 10104.8 x 10"2 x 10"| 6.0 x 10-1º/3.0 x 10-122.4 x 10121.6 x 10*124.8/2.2 x 10131.0 x 10HIO30.80H»C2O41.23H;SO3HSO;HC1O,H;PO4H3ASO4CH,CICOOHH;C¿H;O7HFHNO,НСООНHCH3H§O3H¿C¿HO6C3HsCOOH1.811.92ChlorousClO,H,PO,1.96Phosphoric (1)Arsenic (1)ChloroaceticCitric (1)HydrofluoricNitrousFormic2.122.30CH,CICOOH,C¢H;O;¯F2.853.083.14NO3.39HCOO3.75LacticCH;HsO;3.86Ascorbic (1)BenzoicОхalic (2)HydrazoicCitric (2)4.10C¢H;COO"4.19C,0,4.19HN3H,C¿H5O7¯CH;COOHCH;CH,COOHC;H¾NHN34.72HC¿H;O;²4.74AceticCH;COO"CH;CH,COOC;H¾N4.75PropionicPyridinium ionCitric (3)Carbonic (1)Sulfurous (2)Arsenic (2)HydrosulfuricPhosphoric (2)НурochlorousНуpobromousHydrocyanicBoric (1)Ammonium ionPhenolCarbonic (2)НурoiodousArsenic (3)4.875.253-5.406.37H,CO}HSO;H;AsOq¨H2SHCO;SOHASO6.917.10/7.03HS04.רוךH,PO4HCIOНРОClo7.217.46/7.53HBrOBrO"8.70HCNCN9.219.23H;BO3NH,"C¢H;OHHCO;H;BO;NH39.259.8010.32HIOIO10.70Aso,HO;3-HASO,²9.22/11.53Hydrogen peroxideAscorbic (2)Phosphoric (3)11.62HC,H&O6¯НРОH;O11.80PO,12.32/12.66WaterOH14.0

This is an acid base Titration. Let's see how to find pH at different points of Titration:

Answered: 1. A chemist titrates 20.0 mL of 0.20 M…

1. 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?

Chemistry & Chemical Reactivity

9th Edition

ISBN:9781133949640

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter16: Principles Of Chemical Reactivity: The Chemistry Of Acids And Bases

Section: Chapter Questions

Problem 110IL

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Concept explainers

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.

Question

1. 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?

Table of Acids with Ka and pKa values
Acid
НА
A
Ка
pKa
H;O*
Hydronium ion
Iodic
Oxalic (1)
Sulfurous (1)
Sulfuric (2)
HO
IO;
HC2O4
HSO;
1
0.0
1.6 x 101
5.9 x 10
1.54 x 102
1.2 x 102
1.1 x 10
7.52 x 10*
5.0 x 10
1.4 x 10
8.4 x 10
7.2 x 10*
4.0 x 10
1.77 x 10*
1.38 x 10*
7.9 x 10
6.46 x 10
6.4 x 10
1.9 x 10
1.8 x 10°
1.76 x 10
1.34 x 10
5.6 x 10
4.0 x 10*
4.3 x 10"
1.02 x 10
8/9.3 x 10*
1.0 x 10-//9.1 x 10-8
6.23 x 10
3.5/3.0 x 10*
2х 10%
6.17 x 1010
5.8 x 1010
5.6 х 1010
1.6х 1010
4.8 x 10"
2 x 10"
| 6.0 x 10-1º/3.0 x 10-12
2.4 x 1012
1.6 x 10*12
4.8/2.2 x 1013
1.0 x 10
HIO3
0.80
H»C2O4
1.23
H;SO3
HSO;
HC1O,
H;PO4
H3ASO4
CH,CICOOH
H;C¿H;O7
HF
HNO,
НСООН
HCH3H§O3
H¿C¿HO6
C3HsCOOH
1.81
1.92
Chlorous
ClO,
H,PO,
1.96
Phosphoric (1)
Arsenic (1)
Chloroacetic
Citric (1)
Hydrofluoric
Nitrous
Formic
2.12
2.30
CH,CICOO
H,C¢H;O;¯
F
2.85
3.08
3.14
NO
3.39
HCOO
3.75
Lactic
CH;HsO;
3.86
Ascorbic (1)
Benzoic
Охalic (2)
Hydrazoic
Citric (2)
4.10
C¢H;COO"
4.19
C,0,
4.19
HN3
H,C¿H5O7¯
CH;COOH
CH;CH,COOH
C;H¾NH
N3
4.72
HC¿H;O;²
4.74
Acetic
CH;COO"
CH;CH,COO
C;H¾N
4.75
Propionic
Pyridinium ion
Citric (3)
Carbonic (1)
Sulfurous (2)
Arsenic (2)
Hydrosulfuric
Phosphoric (2)
Нурochlorous
Нуpobromous
Hydrocyanic
Boric (1)
Ammonium ion
Phenol
Carbonic (2)
Нурoiodous
Arsenic (3)
4.87
5.25
3-
5.40
6.37
H,CO}
HSO;
H;AsOq¨
H2S
HCO;
SO
HASO
6.91
7.10/7.03
HS
04.רוך
H,PO4
HCIO
НРО
Clo
7.21
7.46/7.53
HBrO
BrO"
8.70
HCN
CN
9.21
9.23
H;BO3
NH,"
C¢H;OH
HCO;
H;BO;
NH3
9.25
9.80
10.32
HIO
IO
10.70
Aso,
HO;
3-
HASO,²
9.22/11.53
Hydrogen peroxide
Ascorbic (2)
Phosphoric (3)
11.62
HC,H&O6¯
НРО
H;O
11.80
PO,
12.32/12.66
Water
OH
14.0

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