LAB REPORT SHEET-Coumarin

Please check if my answers and process are correct

I am getting confused on how to solve this problem.

Based on the TLC results label spots 1,2,3 with aspirin, acetaminophen, and caffein. Make sure to give the Rf value for each.

Exam 1 2022 • Saving. - O Search (Alt+Q) hmdoyle107@gmail.com n Layout References Mailings Review View Help Table Design Layout - 12 v A A Aa v A E- E E AL T O Find - Normal Heading 1 & Replace No Spacing b x x A v 2. A v Dictate Sensitivity A Select Font Paragraph Styles Editing Voice Sensitivity 27. Which of the following compounds is a tautomer of the following compound? HO. HO. a. b. OH C. Both a and b d. Neither a nor b 28. NaBH4 reduces aldehydes to primary alcohols. a. True b. False E On Accessibility: Investigate DFocus DII prt sc home end insert F2 F3 @ 2# $ % & 3 4 5 7 8 9. W E R T Y U P S D H K

Resources Old Mo odle أنظمة التعم الإلكترولى إدماج التعلم الإلكترولی Cour The order from high to low of ointment bases in terms of affinity to water: Select one: O a. water removable > water soluble > absorption base > oleaginous O b. water soluble > water removable > absorption > oleaginous O c. Absorption base > oleaginous > water soluble > water removable O d. oleaginous > absorption > water soluble > water removable

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Question 4

1.Toxicity Characteristic Leaching Procedure (TCLP) 2.Effect within minutes or days after exposure 3.Colorless gas used for the production of methanol 4. Mesothelioma 5. Combustion product that is associated with burning tire smell 6. Oral lethal dose in grams of a chemical with an LD50 of 1500 mg/kg for a 105 kg person 7. Effect several years after exposure 8. Product causes long-term chronic effects 9. Toxic pollutant that is associated with atmospheric haze 10. Federal drinking water standard for lead Match with the following answer .    a)157.5 g, b) Carbon monoxide c) Sulfur dioxide d) CPSC Toxicity Criteria e) Chrysotile f) RCRA Toxicity g) 15 µg/L h) Acute health effect i) 71.6 g j) Latent health effect k) Nitrogen oxide

q41 IF YOU DO NOT KNOW THE ANSWER PLEASE DO NOT REJECT IT please calculate the unknown concentration of the protein D wih an absorbance value of A412 given the standard curve indicated in the table. write your answers in numbers only with 2 decimals. protein concentration (ug/ml) absorbance 0 0.000 0.02 0.161 0.04 0.284 0.06 0.438 0.08 0.572 0.10 0.762

1) Which of the diet sodas have the highest concentration of caffeine? Which standard best reflects this concentration?

Pre-Lab Questions 1. Define a protein, and describe one important function of proteins in the human body. 2. The following data were obtained from a Bradford assay to determine the protein content in a sample: Protein content (ug) Absorbance value 0 0.000 2 0.022 5 0.065 10 0.106 20 0.178 30 0.299 40 0.380 50 0.472 unknown 0.150 Use Excel, another program, or graph paper to produce a calibration curve based on the data. Use linear regression (or best fit line) to obtain the slope of the line. Determine the unknown protein content for a sample that shows an absorbance reading of b. С. 0.150.

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You finish doing an experiemnt with Benzoin. These are the results you get:Boiling start point: 137 ceciusBoiling end point: 140 ceciusVile while empty (with cap on): 15.348Vile with crude prod (with cap on: 15.748 Your starting weight: 1.00115.748 - 15.348 = 0.400 / 1.001 = 0.3996 or 39.96% YieldAnswer the following questions with this information:Initial Mass of impure sample:Mass of recrystallized benzoin:Percent reccovery of Benzoin:Melting pot range of purified benzoin:Literature melting point for benzoin:

Calculate the number of replicate analyses

Melting point started 54 and stopped 59   did you successfully make benzamide?

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Please calculate the missing amounts in the table using the provided information. Reagent Table: Compound Anthracene Maleic Anhydride Molecular Weight (g/mol) 178.23 g/mol 98.06 g/mol Density (g/mL) N/A N/A Amount (g) mmol Equivalents 0.200 calculate calculate calculate Place 0.200 grams of anthracene and an equal molar amount of maleic anhydride in 5 mL of xylenes in a 10-mL round-bottom flask with a magnetic stir bar. 1 1

Can someone help me the part where it says dyes in unknown mixture I am little confuse about this how to do it

3:15 PM P w 99+ 4/12/2021 AutoSave Carbox. Acids, Derivatives & Amines-Sp 21.doc - Compatibility Mode - Word cyrine joshan lopez ff CJ File Home Insert Draw Design Layout References Mailings Review View Help A Share P Comments O Find S Replace - A A Aav A EE • E E E ¶ AaBbCcD AaBbCcDc AABBC AaBbCc Times New Romai 12 Paste BIU v ab x, x A e A 三三。 1 Normal 1 No Spac... Heading 1 Heading 2 A Select v Dictate Sensitivity Editor Reuse Files Clipboard N Font Paragraph Styles Editing Voice Sensitivity Editor Reuse Files Navigation Search document 8. What is the name of the following compound? Headings Pages CH2CH3 Results <-CH,CH, ci° ČH2CH3 Create an interactive outline of your document. c. N,N,N-triethylanilinium chloride d. N,N,N-triethylaniline chlorine It's a great way to keep track of where you are or quickly a. N,N,N-trimethylanilinium chloride b. N,N,N-diethylanilinium chloride move your content around. To get started, go to the Home tab and apply Heading styles to the headings in…

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I need help with understanding these questions. These questions are not writing/researching responses.