1. The dissociation constant for HIn (a weak acid) is 1 x105. At 500 nm, In has a molarabsorptivity of 628. HIn, however, does not absorb at this wavelength. A solution of HIn wasprepared by adding 1.00 mole of HIn to enough buffer to yield 1 liter of solution. Theabsorbance of the solution was 0.252 at 500 nm in a 1.00 cm cell. Assuming that buffer does notabsorb at 500 nm, calculate the pH of the indicator solution.Please Fill out this Table.eb of In[HIn]pH

Given: Molar Absorptivity of In- = 628 At 500 nm, Absorbance of the solution (A) = 0.252 Cell…

Answered: The dissociation sorptivity of 628.…

The dissociation sorptivity of 628. constant for HIn (a weak acid) is 1 x105. At 500 nm, In has a molar HIn, however, does not absorb at this wavelength. A solution of Hin was 00

Chemistry

9th Edition

ISBN:9781133611097

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter15: Acid-base Equilibria

Section: Chapter Questions

Problem 8ALQ: You have a solution of the weak acid HA and add some of the salt NaA to it. What are the major...

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Question

1. The dissociation constant for HIn (a weak acid) is 1 x105. At 500 nm, In has a molar
absorptivity of 628. HIn, however, does not absorb at this wavelength. A solution of HIn was
prepared by adding 1.00 mole of HIn to enough buffer to yield 1 liter of solution. The
absorbance of the solution was 0.252 at 500 nm in a 1.00 cm cell. Assuming that buffer does not
absorb at 500 nm, calculate the pH of the indicator solution.
Please Fill out this Table.
eb of In
[HIn]
pH

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