Calculate the percent dissociation for a weak monoprotic acid with a pK, of 6.92 at a concentration of 0.280 M. Assume the dissociation is negligible compared to the formal concentration: F-x can be approximated as F without introducing significant error. State the percent dissociation and, ignoring activity coefficients, state whether it would be expected to be higher or lower in the presence of 0.05 MHCI.
Calculate the percent dissociation for a weak monoprotic acid with a pK, of 6.92 at a concentration of 0.280 M. Assume the dissociation is negligible compared to the formal concentration: F-x can be approximated as F without introducing significant error. State the percent dissociation and, ignoring activity coefficients, state whether it would be expected to be higher or lower in the presence of 0.05 MHCI.
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Chapter16: Acid-base Equilibria
Section: Chapter Questions
Problem 16.130QP: Malic acid is a weak diprotic organic acid with Ka1 = 4.0 104 and Ka2 = 9.0 105. a Letting the...
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Transcribed Image Text:6) Calculate the percent dissociation for a weak monoprotic acid with a pK, of 6.92 at a concentration of
0.280 M. Assume the dissociation is negligible compared to the formal concentration: F-x can be
approximated as F without introducing significant error. State the percent dissociation and, ignoring
activity coefficients, state whether it would be expected to be higher or lower in the presence of 0.05
M HCI.
7) Using activity coefficients, calculate the concentration of Ag present in a 0.1 M solution of KNO,
saturated with AgIO (s). Calculate the expected concentration without activity coefficients (using only
Ksp) and state which is larger.
AgIO, Kap-3.1x108
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