Experiment: Determination of the dissociation constant and concentration of a weak acid tnternet can contain viruses Unless you need to edit, it's safer to stay in Protected ViewUSE THIS DATA FOR CALCULATIONCHEMY 102 I experim ent 3 Ka and concentration of weak AcidData Sheetmt Na OHPHmL Na OHpHmL Na OH0.03.1720.0S.4627.512.162.03.5720.55.5628.012.224.03.8621.0S.6628.512.276.04.0821.55.8129.012.308.04.2622.0S.9529.512.3410.04.4322.56.1930.012.3711.04.5223.06.8631.012.4332.04.6023.58,8232.012.4713.04.6824.010.3633.012.5114.04.7724.511.2134.012.524.8625.011.6035.012.5636.04.9625.511.8036.012.59ユy.0S.0626.01L9237.012.6228.05.1726.512.0339.0S.3127.012.12 SUBMIT DATA SHEET1Volume of NaOH at end point V1=Calculation of pH ISHOW CALCULATION FROM THE GRAPH FATTACH GRAPHI2.Find out pH at equivalent to V1/2 =pH=D_3.Equilibrium constant Ka-10 pHmlpka.%3D%3DCalculation of concentration of unknown weak acidHANAOHH,0 +NaAanalytetitrant4. Molarity of NAOH M13=5. Vol .of acidM= V2 =ml%3D6. Molarity of acid7. MIVI=M2V2 =.M2 =?8. Molarity of unknown acid M2 =M%3DCONCLUSION:

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1.Volume of NaOH at end point VI= ml Calculation of pH ISHOW CALCULATION FROM THE GRAPH TATTACH GRAPHI 2.Find out pH at equivalent to V1/2 =pH=, pka. =. 3.Equilibrium constant Ka=10PH

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

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 128SCQ

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Arrhenius Acid

Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red.

Bronsted Lowry Base In Inorganic Chemistry

Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.

Question

Experiment: Determination of the dissociation constant and concentration of a weak acid

tnternet can contain viruses Unless you need to edit, it's safer to stay in Protected View
USE THIS DATA FOR CALCULATION
CHEMY 102 I experim ent 3 Ka and concentration of weak Acid
Data Sheet
mt Na OH
PH
mL Na OH
pH
mL Na OH
0.0
3.17
20.0
S.46
27.5
12.16
2.0
3.57
20.5
5.56
28.0
12.22
4.0
3.86
21.0
S.66
28.5
12.27
6.0
4.08
21.5
5.81
29.0
12.30
8.0
4.26
22.0
S.95
29.5
12.34
10.0
4.43
22.5
6.19
30.0
12.37
11.0
4.52
23.0
6.86
31.0
12.43
32.0
4.60
23.5
8,82
32.0
12.47
13.0
4.68
24.0
10.36
33.0
12.51
14.0
4.77
24.5
11.21
34.0
12.52
4.86
25.0
11.60
35.0
12.56
36.0
4.96
25.5
11.80
36.0
12.59
ユy.0
S.06
26.0
1L92
37.0
12.62
28.0
5.17
26.5
12.03
39.0
S.31
27.0
12.12

SUBMIT DATA SHEET
1Volume of NaOH at end point V1=
Calculation of pH ISHOW CALCULATION FROM THE GRAPH FATTACH GRAPHI
2.Find out pH at equivalent to V1/2 =pH=D_
3.Equilibrium constant Ka-10 pH
ml
pka.
%3D
%3D
Calculation of concentration of unknown weak acid
HA
NAOH
H,0 +NaA
analyte
titrant
4. Molarity of NAOH M13=
5. Vol .of acid
M
= V2 =
ml
%3D
6. Molarity of acid
7. MIVI=M2V2 =.
M2 =?
8. Molarity of unknown acid M2 =
M
%3D
CONCLUSION:

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