Organic Chemistry I LAB EXAM: FINAL BROMINATION OF BENZENE SYNTHESIS AND PURIFICATION OF BROMOBENZENE: PROCEDURE DATA TABLE Chemical Boiling point C Melting Point C Density g/mL Solubility Benzene 80.1 5.5 0.88 Slightly in H2O Toluene 110.6 -93 0.87 Slightly in H2O Bromobenzene 155-156 -30.8 1.50 Insoluble Dibromobenzene 220.40 87.31 0.96 Insoluble MATERIALS: Graduated cylinder Weight scale Buchner funnel Filter flask Rubber stopper Hot plate Thermometer Conical funnel Various
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Instructions: Use pen and write your Full name and student Id on all pages. All labs have to be done during lab time‚ in the lab room. Each lab has to be checked by the instructor progressively during lab time. You must call your instructor to check your work and sign it whenever you reach the point asking for the instructor’s initials or signature. ============================================================= LAB 1.1 Gather and Record System Information Objectives: Gather system
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change in Gatineau Park‚ Old Chelsea‚ were studied quantitatively. The relations between different successional stages of plant communities and abiotic factors were descried. To test these‚ we went to the fields‚ and worked on two transect in groups of 4. We counted the trees and measured the diameter at breast height (dbh) for tree with a dbh value greater than 2cm. The dbh measurements (cm)‚ percentage of fern cover and percentage of bare ground were recorded and used to perform statistical analysis
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Qihui Qian Prof. Hernandez English 350/355 31 October 2014 An unforgettable Day The most unforgettable day in my life is the day I went to America. When this day came‚ I knew how much my parents loved me‚ I became independent‚ and became hard working so that I can achieve my dreams. So I know I will never forget that day since it was a very unforgettable day for me. Here are the reasons why I left China. When I was in high school‚ my father suggested that I study in America. After my father told
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Acid Base Titration bre’ana March 1‚ 2013 Purpose: The purpose of this experiment is to determine the concentration of a solution of NaOH by titration with a standard solution of HCl. It was also the purpose to determine the concentration of a sample of white vinegar by titration with a standard solution of NaOH. Introduction: Using the method of titration is how the experiment gets to the conclusion of the concentration of a solution. When doing this experiment‚ measurement is very important
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“50-50” by Langston Hughes In the poem “50-50” by Langston Hughes‚ the theme is about a lonely woman seeking love. She might be a young woman who left her family in the South and moved North during the Great Migration for better opportunities‚ and that might be the reason why she feels she is all alone in this world. Or‚ she might be a widow or someone who has lost a partner‚ or boyfriend. She feels she is all alone because she has no man in her life. The monologue has a dual persona
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Category Points Description Section 1 Configuring Static and Default Routes - 30 Points Task 4: Step 1 Related Explanation or Response Task 4: Step 2 Related Explanation or Response Task 5: Step 1 Related Explanation or Response Task 5: Step 1 Related Explanation or Response Summary Paragraph 2 3 2 3 2 3 2 3 10 Paste the requested screenshot Provide the requested answer Paste the requested screenshot Provide the requested answer Paste the requested
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ISSC362 Week 2 Lab #4: Compromise and Exploit a Vulnerable Microsoft® Workstation Instructor Name: ________________ Lab Assessment Questions 1. What are the five steps of a hacking attack? 1—Reconnaissance 2—Scanning 3—Gaining Access 4—Maintaining Access 5—Covering Tracks 2. During the reconnaissance step of the attack‚ describe what task Zenmap GUI performs to do passive OS fingerprinting. It sends commands to the platform-specific nmap executable and pipes the output back. Zenmap uses Profiles
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Taki Simadiris p1 Brierly Post-lab a. If you did not wash all of the Calcium Carbonate out of the beaker and into the filter during step 5‚ would your percent yield be larger or smaller? If you do not wash all of the Calcium Carbonate out‚ then the percent yield would be smaller because there is enough calcium carbonate left in the beaker that would have attributed to the final yield. b. If you used tap water instead of DI water what do you think would happen? Why? If you used tap water‚ the coffee
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implies the substrate is undergoing glycolysis more often‚ resulting in increased ATP synthesis. For a more accurate interpretation of the results‚ glucose acted as a positive control‚ displaying the most efficiency in fermentation as shown in Figure 1 and Figure 2‚ while ethanol‚ which is a byproduct of fermentation‚ acted as a negative control‚ producing no CO2. These controls were necessary in order to compare the effectiveness of alternative substrates ATP production when presented with S. cerevisia
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