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Abs at wavelength 1 ( = Abs at wavelength 2 ( = Sample nm) nm) Cr* Ni2* Unknown Set up the equation for the two wavelengths using Beer's Law and calculate the concentrations of the metal ions in your unknown using two simultaneous equations: at wavelength 1: A1 = A1lccr + Ailcni at wavelength 2: A2 = A2lccr + AzlCNi

Abs at wavelength 1 ( = Abs at wavelength 2 ( = Sample nm) nm) Cr* Ni2* Unknown Set up the equation for the two wavelengths using Beer's Law and calculate the concentrations of the metal ions in your unknown using two simultaneous equations: at wavelength 1: A1 = A1lccr + Ailcni at wavelength 2: A2 = A2lccr + AzlCNi

Chemistry
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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Abs at wavelength 1 (A = Abs at wavelength 2 (^ =, Sample nm) nm) Cr* Ni2+ Unknown Set up the equation for the two wavelengths using Beer's Law and calculate the concentrations of the metal ions in your unknown using two simultaneous equations: at wavelength 1: A1 = Ailccr + AılCNi at wavelength 2: A2 = A2lCcr + A2lCNi
Transcribed Image Text:Abs at wavelength 1 (A = Abs at wavelength 2 (^ =, Sample nm) nm) Cr* Ni2+ Unknown Set up the equation for the two wavelengths using Beer's Law and calculate the concentrations of the metal ions in your unknown using two simultaneous equations: at wavelength 1: A1 = Ailccr + AılCNi at wavelength 2: A2 = A2lCcr + A2lCNi
Unknown Absorbance STD CURVE Ni 500 650 Mixture: Compound Cr 0.5 M Compound Ni 0.5 M CONC (M) ABS ABS ABS @ 500 0.887 400 nm 0.078 0.213 0.1 0.074 0.091 ABS @ 650 1.078 450 nm 0.111 0.388 0.2 0.148 0.099 500 nm 0.154 0.432 0.4 0.408 0.108 550 nm 0.186 0.367 0.8 1.378 0.127 600 nm 0.264 0.216 1.6 2.413 0.145 650 nm 0.468 0.117 700 nm 0.284 0.087 STD CURVE Cr 500 650 750 nm 0.157 0.057 CONC (M) ABS ABS 800 nm 0.154 0.045 0.1 0.075 0.173 0.2 0.103 0.214 0.4 0.106 0.459 0.8 0.124 1.469 1.6 0.189 2.684
Transcribed Image Text:Unknown Absorbance STD CURVE Ni 500 650 Mixture: Compound Cr 0.5 M Compound Ni 0.5 M CONC (M) ABS ABS ABS @ 500 0.887 400 nm 0.078 0.213 0.1 0.074 0.091 ABS @ 650 1.078 450 nm 0.111 0.388 0.2 0.148 0.099 500 nm 0.154 0.432 0.4 0.408 0.108 550 nm 0.186 0.367 0.8 1.378 0.127 600 nm 0.264 0.216 1.6 2.413 0.145 650 nm 0.468 0.117 700 nm 0.284 0.087 STD CURVE Cr 500 650 750 nm 0.157 0.057 CONC (M) ABS ABS 800 nm 0.154 0.045 0.1 0.075 0.173 0.2 0.103 0.214 0.4 0.106 0.459 0.8 0.124 1.469 1.6 0.189 2.684
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