Question: please answer all Postlab: Please submit as a separate assignment in the Lab Module: This page is posted in Beer's Law Postlab 1. FD&C Blue

please answer all please answer all Postlab: Please submit as a separate assignment in the

Postlab: Please submit as a separate assignment in the Lab Module: This page is posted in "Beer's Law Postlab 1. FD&C Blue #1 Erioglaucine has a molar mass = 792.86 g/mol. Calculate the molarity of a stock solution prepared from 0.0729 g of Blue #1 and enough water to make 350 mL of solution. Show your work 2. When 1.0 mL of the solution in Question 1 is mixed with 21.0 mL of water, what will be the new concentration of the solution? Show your work 3. The solution in Question 2 is to be measured in an absorption spectrometer. At an appropriate analytical wavelength, the solution is known to have a molar absorptivity of 34,000 L/(mol cm). If analyzed in a sample vessel with a pathlength of 2.0 cm, what will be the expected absorbance of the solution? Show your work. 11.2001 8 4. For a particular molecule, a Beer's Law plot generated from absorption spectroscopy has a best fit line with equation y31008 x. What would be the concentration (Units would be M or mol/L) of a solution of this molecule that registers absorbance of 0.44? Show your work. 5. Compare Equation 1 and 2 in the Introduction. Calculate the % transmittance for a solution that has absorbance of 0.442 Show your work

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