Adeoti Taylor Chem2583 Organic Chemistry Laboratory Class ID:8622098 Organic Lab 2 2583-04 Instructor: Andy Szalkiewicz 9/30/2014 Recrystallization Objective/Abstract: The purpose of this lab is to purify solids contaminated by relatively small amount of impurities by a technique called Recrystallization. Compounds that have different solubility at different temperature usually can be recrystallized. Formulas and Structures: Benzoic Acid Methanol Percent Recovery: Indicates how much of the
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Colleen Doyle Lab report 4 Gender Roles John Tucker Must Die John Tucker Must Die is a movie about the classic stereotypical male athlete in high school. John Tucker is the star basketball player who is sexy‚ talented and good with his words. Every girl in high school wants to date John Tucker. With his reputation‚ John dates 3 girls at once. He dates such stereotypical girls including the cheerleader‚ the “slut”‚ and the smarty-pants. Because of his name‚ he gets away this. But‚ all of this
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to Science. Read Lab 1: Introduction to Science. This lab includes several critical thinking activities introducing the scientific method‚ lab reporting‚ and data collection and management. Then‚ utilize this information to complete Exercise
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1. a. List four cell structures that were common to both plant and animal cells. (4 points) b. What structures were unique to plant cells? (2 points) c. What structures were unique to animal cells? (2 points)--Answer below: a. 1. Rough ER 2. Smooth ER 3. Golgi Apparatus 4. Nucleus b. 1. Chloroplast 2. Cell walls 3. Vacuole c.
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“1” risk impact/risk factor value of “Critical” for an identified risk‚ threat or vulnerability? The “1” risk‚ threat‚ or vulnerability impacts compliance and places the company in position of increased liability but is not as critical as “2” or ‘3.” 4. When you assembled all of the “1” and “2” and “3” risk impact/risk factor values to the identified risks‚ threats‚ and vulnerabilities‚ how did you prioritize the “1”‚ “2”‚ and “3” risk elements? What would you say to the executive management in regards
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Oklahoma? A.1 B.4 C.3 D.0 E.2 Answer Key: E Feedback: Good job! Question 2 of 8 0.0/ 20.0 Points What are the airmasses present within the images below? A. cT B. mT C. mP D. cP Answer Key: B‚ D Feedback: The method to determine airmasses are based on where they are from and moisture content. Question 3 of 8 10.0/ 10.0 Points Which air mass forms over North America only in summer? A.cT B.mP C.mT D.cP Answer Key: A Question 4 of 8 10.0/ 10.0 Points
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increased potassium concentration in the CPR solution and the transport of the solution into the tubule (figure 1). The least tubule transport occurred at 0mM potassium (score of 0) and the most tubule transport occurred at 10mM potassium (score of 4) (figure 1). There was a strong positive correlation (R2=0.9871) between increased sodium concentration in the CPR solution and the transport of the solution into the tubule (figure 2). The least tubule transport occurred at 0mM sodium (score of 0.083
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Results and Discussion: A reaction involving two bond formation was employed for the preparation of 3‚5-disubstituted 1‚2‚4-triazole as nucleobase analog. The hydrazides 2a‚b were allowed to react with the heteroaryl substituted acetonitrile derivatives 1a-c using catalytic amount of K2CO3 and n-butanol as a solvent to afford the disubstituted 1‚2‚4-triazoles 3-7 bearing benzothiazole‚ benzotriazole‚ quinoloxymethyl and benziimidazole ring systems in moderate yields. The structures of compounds
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1. Read the paper “Post–Green Revolution Trends in Yield Potential of Temperate Maize in the North-Central United States” by Duvick and Cassman (In Blackboard – Seed Technology folder). 2. By looking at Figure 1 describe what has happened to grain protein‚ grain starch‚ tassel weight and leaf angle score through decades of corn breeding. -Some traits are held constant while corn breeders are continuously changing their ideas of the ideal corn hybrid. Also‚ the corn breeders are doing what satisfies
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to perform authorized transactions. If you are on a bad site such as a bad movie upload page or a smut website the hacker can use that to pass false authorization. 3. What is the proper way to prevent XSS attack? The first rule is to deny all 4. If an attacker wishes to place a phishing page on a website‚ what is a common vulnerability that can be exploited to successfully do this? Criminals often use social engineering along with vulnerabilities in applications such as web browsers or email
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