P2 S3 In-Lab Worksheet

P2 S3 In-Lab Worksheet - Chemical Thinking P2 S3 In-Lab...

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Chemical Thinking P2 S3 In-Lab Worksheet v3.1 | Project 2 Session 3 In-Lab Worksheet All work must be well-written and organized . If your penmanship is poor, you must type all responses. If you need to organize your thoughts, please use a separate sheet of paper. A major objective of this lab course is to develop skills in scientific communication. Just having the right “answer” is not good enough – you must communicate clearly and succinctly and use terms and concepts correctly . Calculations (10 p) Present the complete set of calculations that permitted determining the grams of FD&C food dye per gram of gumball Remember to symbolically state the all equations, defining all variables and constants. Beer’s Law A=ELC A= Absorbance (.642) E= Molar Absorptivity (23584) L= Path Length (1cm) C= Concentration (2.72x10 -5 mol) Red Dye #40 Molar Mass (496.42g/m) Mass of Red Gumballs (8.594g) Extracted Volume (17mL) Rearrange Beer’s Law to find the concentration of the dye.
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