In an aqueous solution, the colourless weak acid p-nitrophenol (C,HşNO3) undergoes hydrolysis to produce yellow-coloured p-nitrophenoxide ions. The absorbance of this solution was measured at 410 nm and found to be 0.433 when using a sample cell with a pathlength of 1.00 cm. Only p-nitrophenoxide ions absorb at this wavelength. Its molar attenuation coefficient, at this wavelength, is 18 600 L molH cm-!. a) Complete the equilibrium equation. C,H,NO,(aq) + H,O() = (ад) + (аq) b) Determine the concentration of p-nitrophenoxide in the solution.

In an aqueous solution, the colourless weak acid p-nitrophenol (C,HşNO3) undergoes hydrolysis to produce yellow-coloured p-nitrophenoxide ions. The absorbance of this solution was measured at 410 nm and found to be 0.433 when using a sample cell with a pathlength of 1.00 cm. Only p-nitrophenoxide ions absorb at this wavelength. Its molar attenuation coefficient, at this wavelength, is 18 600 L molH cm-!. a) Complete the equilibrium equation. C,H,NO,(aq) + H,O() = (ад) + (аq) b) Determine the concentration of p-nitrophenoxide in the solution.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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