Consider a 0.10 M solution of a weak polyprotic acid (H2A) with the possible values of Ka1 and Ka2 given below. Calculate the contributions to [H3O+] from each ionization step. a) Ka1=1.0×10−4;Ka2=5.0×10−5 Express your answers using two significant figures separated by commas. b) Ka1=1.0×10−4;Ka2=1.0×10−5 Express your answers using two significant figures separated by commas. c) Ka1=1.0×10−4;Ka2=1.0×10−6 Express your answers using two significant figures separated by commas.
Consider a 0.10 M solution of a weak polyprotic acid (H2A) with the possible values of Ka1 and Ka2 given below. Calculate the contributions to [H3O+] from each ionization step. a) Ka1=1.0×10−4;Ka2=5.0×10−5 Express your answers using two significant figures separated by commas. b) Ka1=1.0×10−4;Ka2=1.0×10−5 Express your answers using two significant figures separated by commas. c) Ka1=1.0×10−4;Ka2=1.0×10−6 Express your answers using two significant figures separated by commas.
Chapter8: Polyfunctional Acids And Bases
Section: Chapter Questions
Problem 5P
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Consider a 0.10 M solution of a weak polyprotic acid (H2A) with the possible values of Ka1 and Ka2 given below. Calculate the contributions to [H3O+] from each ionization step.
a)
Ka1=1.0×10−4;Ka2=5.0×10−5
Express your answers using two significant figures separated by commas.
b)
Ka1=1.0×10−4;Ka2=1.0×10−5
Express your answers using two significant figures separated by commas.
c)
Ka1=1.0×10−4;Ka2=1.0×10−6
Express your answers using two significant figures separated by commas.
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