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44) Consider the Determination of pKa of an Indicator Lab. The procedure described in the experiment was used to determine the pKa of an acid-base indicator. The following data was obtained: pH = 8.21 Absorbance = 0.550 Absorbance of HIn = 0.003 Absorbance of In1- = 0.712 What is the pKa of the indicator? 7.68 7.89 7.50 7.71

          44) Consider the Determination of pKa of an Indicator Lab. The procedure described in the experiment was used to determine the pKa of an acid-base indicator. The following data was obtained:
pH = 8.21 Absorbance = 0.550 Absorbance of HIn = 0.003 Absorbance of In1- = 0.712
What is the pKa of the indicator?
7.68
7.89
7.50
7.71

44) Consider the Determination of pKa of an Indicator Lab. The procedure described in the experiment was used to determine the pKa of an acid-base indicator. The following data was obtained:
pH = 8.21 Absorbance = 0.550 Absorbance of HIn = 0.003 Absorbance of In1- = 0.712
What is the pKa of the indicator?
7.68
7.89
7.50
7.71

Added by Cody J.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Sri K

03/31/2022

Step 1

Given energy = 1.26 x 10^-13 J Planck's constant (h) = 6.626 x 10^-34 J*s Frequency (ν) = Energy / Planck's constant ν = 1.26 x 10^-13 / 6.626 x 10^-34 ν = 1.90 x 10^20 Hz Show more…

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44) Consider the Determination of pKa of an Indicator Lab. The procedure described in the experiment was used to determine the pKa of an acid-base indicator. The following data was obtained: pH = 8.21 Absorbance = 0.550 Absorbance of Hln = 0.003 Absorbance of In1- = 0.712 What is the pKa of the indicator? 7.68 7.89 7.50 7.71