volumes of 1.20 M sodium hydroxide. HgHis + H* + H2His" Kal = 3.98x103 H2His + H* + HHIS²- Ka2 = 9.12x107 HHis2- + H* + His3- Ka3 = 4.67x10-10 Vol. of NAOH Calculated pH O mL 30 mL 50 mL
volumes of 1.20 M sodium hydroxide. HgHis + H* + H2His" Kal = 3.98x103 H2His + H* + HHIS²- Ka2 = 9.12x107 HHis2- + H* + His3- Ka3 = 4.67x10-10 Vol. of NAOH Calculated pH O mL 30 mL 50 mL
Chapter8: Polyfunctional Acids And Bases
Section: Chapter Questions
Problem 14P
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![Calculate the pH at each of the following points for the titration of 100 mL of 0. 6 M dl-Histidine with the following
volumes of 1.20 M sodium hydroxide.
H3His + H* + H2His
Ka1
= 3.98x10-3
H2His + H* + HHis2-
Ka2 = 9.12x1o7
HHİS2- + H* + His3-
Ka3 = 4.67x10-10
Vol. of NaOH
Calculated pH
O mL
30 mL
50 mL
75 mL
100 mL
125 mL
135 mL
150 mL
175 mL
Please provide a sketch of the titration curve and label both the x & y axis and applicable equations used at each data
point (e.g., pH = - log[H*] or pH = pk, or pH = pK, + log )](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0ae74c46-470f-43b3-86f0-f9fe83c5c773%2F56158129-c009-4b9e-8759-5f2297753014%2Fjxvz1en_processed.png&w=3840&q=75)
Transcribed Image Text:Calculate the pH at each of the following points for the titration of 100 mL of 0. 6 M dl-Histidine with the following
volumes of 1.20 M sodium hydroxide.
H3His + H* + H2His
Ka1
= 3.98x10-3
H2His + H* + HHis2-
Ka2 = 9.12x1o7
HHİS2- + H* + His3-
Ka3 = 4.67x10-10
Vol. of NaOH
Calculated pH
O mL
30 mL
50 mL
75 mL
100 mL
125 mL
135 mL
150 mL
175 mL
Please provide a sketch of the titration curve and label both the x & y axis and applicable equations used at each data
point (e.g., pH = - log[H*] or pH = pk, or pH = pK, + log )
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