Data for Cr(No3)3 Concentration (M) Absorbance Value at wavelength Cr Absorbance
ID: 623308 • Letter: D
Question
Data for Cr(No3)3 Concentration (M) Absorbance Value at wavelength Cr Absorbance value at wavelength Co Dilution 1 4.000e-2 0.84 0.28 Dilution 2 3.200e-2 0.56 0.19 Dilution 3 1.920e-2 0.37 0.12 Dilution 4 1.152e-2 0.25 0.08 Construct plots of absorbance (y-axis) versus concentration (x-axis) for both wavelengths of this data. Determine the slopes of the best-fit lines. Make sure each plot goes through origin (0,0). Since the path length is equal to 1 cm, the slopes are equal to the molar absorptivity constants. Molar absorptivity for Cr(NO3)3 E at wavelength Cr ? E at wavelength Co ?Explanation / Answer
Data for Cr(No3)3 Concentration (M) Absorbance Value at wavelength Cr Absorbance value at wavelength Co Dilution 1 4.000e-2 0.84 0.28 Dilution 2 3.200e-2 0.56 0.19 Dilution 3 1.920e-2 0.37 0.12 Dilution 4 1.152e-2 0.25 0.08 Construct plots of absorbance (y-axis) versus concentration (x-axis) for both wavelengths of this data. Determine the slopes of the best-fit lines. Make sure each plot goes through origin (0,0). Since the path length is equal to 1 cm, the slopes are equal to the molar absorptivity constants. Molar absorptivity for Cr(NO3)3 E at wavelength Cr ? E at wavelength Co ?
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.