Principles of Instrumental Analysis
7th Edition
ISBN: 9781305577213
Author: Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher: Cengage Learning
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Chapter 1, Problem 1.2QAP
What is the information processor in an instrument for measuring the color of a solution visually?
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- in the images attach can you please calculate the Concentration of Allura Red M and can you also please please Create graphs with Excel (or a similar program). Plot absorbance (v-axis) vs. A (×- axis) for the absorbance curve determined in part 2. Connect the points with a smooth curve. Plot absorbance (y-axis) vs. concentration (x-axis) for the Beer's Law data from part 3. Draw a best-fit line or use a program such as Excel and do a least-squares fit to determine the best-fit line through the points. lastly can you please show a sample the concentration of the solutions made by dilution. Also use the slope of the best-fit line from your absorbance vs. concentration plot to calculate the concentration of Allura Red in each unknown. Also please dont forget to do the results box in the image attach please please answer super super fast i really need it its very urgent and important please answer everything i need it before the end of today before 11:59pm I would really appreciate it if…arrow_forwardWhich instrument can be used best to detect metals in Water like POTASSIUM?arrow_forwardA medical lab technician creates a standard solutions of percent hemoglobin in whole blood. The technician measures the absorbance of each solution at 520 nm and creates a standard curve of the absorbance versus percent hemoglobin in whole blood and finds the linear equation below, with an R2 of 0.9985. y = 0.0523 x + 0.072 A patient sample has an absorbance of 0.162. Using the standard curve data, calculate the percent hemoglobin in the patient samplearrow_forward
- blue ink from three different pens appears to be the exact same color. explain how to determine whether the dyes are identicalarrow_forwardexplain in you own words what happens to a beam of light when passes through a colored solution (for example a purple solution)arrow_forwardPlease explain how to find the highest O.N and why is for example number a) Cr +6 and not +7. Thank you!arrow_forward
- 1. Based on your understanding of color's relationship to wavelength, identify the approximate wavelength of light (nm) emitted by strontium when it was burned. 2.While boiling potatoes for dinner in salted water, the pot boils over and you notice that the flame on your gas burner turns to bright yellow-orange. How would you explain the appearance of a color in the previously blue flame? 3.What would you conclude about chloride based on your results in the flame tests? 4.Place the metal solutions you tested in order of increasing energy based on the colors observed in the flame test; i.e., A < B < C.arrow_forwardReferring to the posted calibration curve (image attached) ...A 2.345 g sample of a ruthenium ore was dissolved and diluted to 100.00 mL. 4.000 mL of this sample was removed, treated appropriately, and diluted to 50.00 mL. This solution has an absorbance of 0.320. Calculate how many grams of ruthenium (MW = 101.07 g/mol) were in the sample.Select one:1.6 1.3 51 52 1.2arrow_forwardA medical lab technician creates a standard solutions of percent hemoglobin in whole blood. The technician measures the absorbance of each solution at 520 nm and creates a standard curve of the absorbance versus percent hemoglobin in whole blood and finds the linear equation below, with an R2 of 0.9985. y= 0.0523x + 0.072 A patient sample has an absorbance of 0.893. Using the standard curve data, calculate the percent hemoglobin in the patient sample.arrow_forward
- Referring to the posted calibration curve ...A 2.345 g sample of a ruthenium ore was dissolved and diluted to 100.00 mL. 4.000 mL of this sample was removed, treated appropriately, and diluted to 50.00 mL. This solution has an absorbance of 0.320. Calculate how many grams of ruthenium (MW = 101.07 g/mol) were in the sample.Select one:1.6 1.3 51 52 1.2arrow_forwardA medical lab technician creates a standard solutions of percent hemoglobin in whole blood. The technician measures the absorbance of each solution at 520 nm and creates a standard curve of the absorbance versus percent hemoglobin in whole blood and finds the linear equation below, with an R2 of 0.9985. y=0.0523x+0.072 A patient sample has an absorbance of 0.915. Using the standard data curve data, calculate the percent hemoglobin in the samplearrow_forwardWhat is the general relationship between the concentration of a solution and the absorbance?arrow_forward
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