3 pts D Question 5 After creating her standard curve for absorption versus the concentration (M)...
After creating her standard curve for absorption versus the concentration (M) of FD&C Red 40, a student found that her best fit linear line for FD&C Red 40 2,243x + -0.006 was y Her Kool-Aid sample had an absorbance of 0.422. If 0.496 grams of Kool-Aid powder was used to prepare an 8-fl oz cup of her assigned flavor, what is the percent by mass of FD&C Red 40 in her 8-fl oz cup? Do not include the percentage sign...
After creating her standard curve for absorption versus the concentration (M) of FD&C Red 40, a student found that her best fit linear line for FD&C Red 40 was y= 2,896x + -0.004. Her Kool-Aid sample had an absorbance of 0.842. If 0.484 grams of Kool-Aid powder was used to prepare an 8-fl oz cup of her assigned flavor, what is the percent by mass of FD&C Red 40 in her 8-fl oz cup?
After creating her standard curve for absorption versus the concentration (M) of FD&C Red 40, a student found that her best fit linear line for FD&C Red 40 was y = 2,840x + 0.005. Her Kool-Aid sample had an absorbance of 0.635. If 0.546 grams of Kool-Aid powder was used to prepare an 8-fl oz cup of her assigned flavor, what is the percent by mass of FD&C Red 40 in her 8-fl oz cup?
1. Determining the Wavelength of Maximum Absorption: 2. Determining the concentration of an Unknown Solution Volume of Stock Concentration of Soln #1 T2.001.xlon #2 5.00 2.5x loin . . x ^ 10.00 Soxom A=493.6 mm Rad y o sxlom Recorded Absorbance 0.212 0.528 0.947 1453 #4 Calibration Curve Slope of Least Squares Best Fit Line (molar abspoptivity, E) Equation for Least squares best fit line: A-42. Ubxk 2916xlor 6-01482 0.9652 Correlation Factor (R) for Least Squares Best Fit Line 3....
LEILU.23.27 Eugenia Bueso-Alas: Attempt 2 UUTUUU-Dye SD Incorrectly Low Question 3 (20 points) An unknown food-dye is analyzed by the method used in this experiment. The absorbance of 5 standard solutions is plotted vs. their concentration (molarity) and a straight line is obtained with the formula: Abs = 4.350x +0.06 An unknown food-dye soluton is diluted and it's absorbance is found to be 0.65. What is the molarity of the diluted unknown, to two significant figures? Do not type units...