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...

See similar textbooks

Similar questions

Pleas give the structure of the major organic product in the reaction
Provide the products, intermediates, and/or reagents for the following reactions:
The dyes used were Bromocresol Green, Bromocresol Purple, Bromophenol Blue, Bromothymol Blue, and Methyl Orange
Showing the workings, estimate the lower flammability limit of tetrahydrofuran tetrahydrofuran
How and what is the mechanism by which crystal structure of the mineral is altered by calcination , which in turn can impact its surface acidity. What happens when a crystal structure changes and why does it affect surface acidity?
Which of the two salts is hydrolyzed to a greater extent under equal conditions(KCN or KClO), why? Confirm your answer by calculating the hydrolysis constant. Write ionic-molecular and molecular hydrolysis equation. What pH of the medium will be observed during the hydrolysis of this saltas (acidic or alkaline) Are solutions of these compounds dangerous to humans? Why?
Rank the following molecules by relative order of elution on silica, from the fastest eluting compound (1) to the slowest (4). Classez les molécules suivantes en ordre relatif d'élution sur la silice, du composé le plus rapide (1) au plus lent (4). HO > د د A به هم مسجد ہو .OH Molecule C Molecule D Molecule A Molecule B
the total solubility of amoxicillin hydrate a weekly acid acidic drug with a PK of 7.11 in SO 00.0 1M in acquiesce buffered solution of a pH equaling 7.2 is
On the following page are three compounds, 1, 2, and 3, that have been investigated as anti-malarial candidates. Compound 1 is the "parent" molecule, and 2 and 3 are derivatives. Shown next to each molecule is (i) the enthalpy change when it binds to its target, and (ii) the dissociation constant for the molecule/target complex. Consider the structures and answer the following: AH = - 1.2 kcal/mol; Kp = 16 nM OH 1 HO AH = - 6.0 kcal/mol; Kp = 76 nM OH AH = - 5.5 kcal/mol; Kp = 0.5 nM OH 3 (i) What is the difference among 1, 2, and 3?