A solution containing only 4.0 µM of Ca(OH)2 and the compound Hydrocyanic acid. This compound in solution is partially dissociated in the solution and in equilibrium with a specific concentration 68.50 ppmv in the headspace of the container. The total pressure of the headspace is 1.5 atm and the temperature is 25 °C. What is the resulting pH? Make sure to show all your work. The dissociation occurs in the following manner: Ca(OH)2 - Ca2+ + 2 OH- (complete dissociation) HCN - CN- + H+(complete dissociation) HCN dissociation constant Ka=4.5 *10^-10

A solution containing only 4.0 µM of Ca(OH)2 and the compound Hydrocyanic acid. This compound in solution is partially dissociated in the solution and in equilibrium with a specific concentration 68.50 ppmv in the headspace of the container. The total pressure of the headspace is 1.5 atm and the temperature is 25 °C. What is the resulting pH? Make sure to show all your work. The dissociation occurs in the following manner: Ca(OH)2 - Ca2+ + 2 OH- (complete dissociation) HCN - CN- + H+(complete dissociation) HCN dissociation constant Ka=4.5 *10^-10

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter15: Acid–base Equilibria

Section: Chapter Questions

Problem 107AP

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A solution containing only 4.0 μM of Ca(OH)2 and the compound Hydrocyanic acid. This compound in solution is partially dissociated in the solution and in equilibrium with a specific concentration 68.50 ppmv in the headspace of the container. The total pressure of the headspace is 1.5 atm and the temperature is 25 °C. What is the resulting pH? Make sure to show your work.The dissociation occurs in following manner:Ca(OH)2 ↔ Ca2+ + 2 OH− (complete dissociation)HCN ↔ CN− + H+(complete dissociation)
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