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Homework Answers
According to the graph, there are 3 titrable protons.
The pKa is observed at each midpoint of equivalence, then:
P1 / 2 1 = 25 mL
pKa1 = 2
P1 / 2 2 = 75 mL
pKa2 = 6.2
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15 marks] H3PO3 is the dominant species H2PO, is the dominant species HPO,2 is the dominant...
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HOOC COOH Maleic Acid Hd 20 40 60 Volume of NaOH (mL) The curve above shows the titration of 250 mL of 100 mM maleic ac...
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НООС СООН CEC H Η Maleic Acid PH 20 40 60 Volume of NaOH (mL) The curve above shows the titration of 250 mL of 100 mM maleic acid using 1 M NaOH. a) How many titratable protons are present in this acid? [1 marks]. b) Indicate on the curve with a "O" the end point titrations of each titratable group. [1 mark] c) Indicate on the titration curve with a clear "X" each pKa value associated with these titratable...
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HOOC COOH CC Maleic Acid Hd 20 40 60 Volume of NaOH (mL) The curve above shows the titration of 250 mL of 100 mM maleic acid using 1 M NaOH. a) How many titratable protons are present in this acid? [1 marks]. b) Indicate on the curve with a "O" the end point titrations of each titratable group. [1 mark] c) Indicate on the titration curve with a clear "X" each pKa value associated...
HOOC COOH Maleic Acid Hd 20 40 60 Volume of NaOH (mL) The curve above shows the titration of 250 mL of 100 mM maleic acid using 1 M NaOH. a) How many titratable protons are present in this acid? [1 marks). b) Indicate on the curve with a "O"the end point titrations of each titratable group. [1 mark) c) Indicate on the titration curve with a clear "X" each pKa value associated with these titratable protons and estimate to...
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