Absorbance values for five standard solutions of a colored solute were determined at 410 nm with a 1.00-cm path length, giving the following table of data: Solute concentration (M) A 0.250 0.165 0.500 0.317 0.750 0.510 1.000 0.650 1.250 0.837 The absorbance of a solution of unknown concentration containing the same solute was 0.400. (a) What is the concentration of the unknown solution? (b) Determine the absorbance values you would expect for solutions with the following concentrations: 0.4 M , 0.6 M , 0.8 M, 1.1 M . (c) Calculate the average molar absorptivity of the compound and determine the units of molar absorptivity.
Absorbance values for five standard solutions of a colored solute were determined at 410 nm with a 1.00-cm path length, giving the following table of data: Solute concentration (M) A 0.250 0.165 0.500 0.317 0.750 0.510 1.000 0.650 1.250 0.837 The absorbance of a solution of unknown concentration containing the same solute was 0.400. (a) What is the concentration of the unknown solution? (b) Determine the absorbance values you would expect for solutions with the following concentrations: 0.4 M , 0.6 M , 0.8 M, 1.1 M . (c) Calculate the average molar absorptivity of the compound and determine the units of molar absorptivity.
Solution Summary: The author explains how the concentration of unknown solution and absorbances of some solutions are to be determined. Absorbance is the amount of light absorbed by the solution.
Absorbance values for five standard solutions of a colored solute were determined at 410 nm with a 1.00-cm path length, giving the following table of data:
Solute concentration (M)
A
0.250
0.165
0.500
0.317
0.750
0.510
1.000
0.650
1.250
0.837
The absorbance of a solution of unknown concentration containing the same solute was 0.400. (a) What is the concentration of the unknown solution? (b) Determine the absorbance values you would expect for solutions with the following concentrations: 0.4 M, 0.6 M, 0.8 M, 1.1 M. (c) Calculate the average molar absorptivity of the compound and determine the units of molar absorptivity.
Some of the theories used to describe interface structure can be distinguished by:1. the measured potential difference.2. the distribution of ions in solution.3. the calculation of charge density.4. the external Helmoltz plane.
When talking about the acidity of carboxylic acids, is it the same thing to say higher or stronger acidity?
Using the following two half-reactions, determine the pH range in which $NO_2^-\ (aq)$ cannot be found as the predominant chemical species in water.* $NO_3^-(aq)+10H^+(aq)+8e^-\rightarrow NH_4^+(aq)+3H_2O(l),\ pE^{\circ}=14.88$* $NO_2^-(aq)+8H^+(aq)+6e^-\rightarrow NH_4^+(aq)+2H_2O(l),\ pE^{\circ}=15.08$
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell