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Consider the following data set: Sample 100 μg/mL CuSO4 standard 200 µg/mL CuSO4 standard 300 µg/mL CuSO4 standard 400 μg/mL CuSO4 standard 500 µg/mL CuSO4 standard CuSO4 Solution with Unknown Concentration Corrected Absorbance at 470 nm 0.032 0.058 0.090 0.114 0.140 0.070 1. Plot (Using MS Excel) or draw by hand a standard calibration curve for samples 1 to 5. Determine the molar absorptivity using the absorbance of the 100 µg/mL CuSO4 standard. (Note: Convert ug/mL to Molarity first using the molar mass of the standard which is 249.685 g/mol).

Consider the following data set: Sample 100 μg/mL CuSO4 standard 200 µg/mL CuSO4 standard 300 µg/mL CuSO4 standard 400 μg/mL CuSO4 standard 500 µg/mL CuSO4 standard CuSO4 Solution with Unknown Concentration Corrected Absorbance at 470 nm 0.032 0.058 0.090 0.114 0.140 0.070 1. Plot (Using MS Excel) or draw by hand a standard calibration curve for samples 1 to 5. Determine the molar absorptivity using the absorbance of the 100 µg/mL CuSO4 standard. (Note: Convert ug/mL to Molarity first using the molar mass of the standard which is 249.685 g/mol).

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter4: Stoichiometry: Quantitative Information About Chemical Reactions
Section: Chapter Questions
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Provide full complete solutions do not round off numbers and show proper labelling and cancellations Answer question #1, use ms excel for plot and include the screenshot and.
Consider the following data set: Sample 100 μg/mL CuSO4 standard 200 μg/mL CuSO4 standard 300 μg/mL CuSO4 standard 400 µg/mL CuSO4 standard 500 μg/mL CuSO4 standard CuSO4 Solution with Unknown Concentration Corrected Absorbance at 470 nm 0.032 0.058 0.090 0.114 0.140 0.070 1. Plot (Using MS Excel) or draw by hand a standard calibration curve for samples 1 to 5. Determine the molar absorptivity using the absorbance of the 100 µg/mL CuSO4 standard. (Note: Convert ug/mL to Molarity first using the molar mass of the standard which is 249.685 g/mol). 2. Write the resulting linear regression equation and R² of the plotted standard calibration curve. 3. Calculate the concentration of the "CuSO4 Solution with Unknown Concentration" using the produced linear regression equation from the standard calibration curve and its absorbance at 470 nm.
Transcribed Image Text:Consider the following data set: Sample 100 μg/mL CuSO4 standard 200 μg/mL CuSO4 standard 300 μg/mL CuSO4 standard 400 µg/mL CuSO4 standard 500 μg/mL CuSO4 standard CuSO4 Solution with Unknown Concentration Corrected Absorbance at 470 nm 0.032 0.058 0.090 0.114 0.140 0.070 1. Plot (Using MS Excel) or draw by hand a standard calibration curve for samples 1 to 5. Determine the molar absorptivity using the absorbance of the 100 µg/mL CuSO4 standard. (Note: Convert ug/mL to Molarity first using the molar mass of the standard which is 249.685 g/mol). 2. Write the resulting linear regression equation and R² of the plotted standard calibration curve. 3. Calculate the concentration of the "CuSO4 Solution with Unknown Concentration" using the produced linear regression equation from the standard calibration curve and its absorbance at 470 nm.
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