Purpose The purpose of this experiment is to determine the rate constants‚ k1‚ for the methyl acetate hydrolysis reaction at 25 °C and 35 °C‚ as well as the overall activation energy of the reaction. Methods Methyl acetate was placed in an HCl solution‚ in which it reacts with water to form acetic acid over time. At each time interval‚ an aliquot of the mixture was removed for titration against NaOH to determine the concentration of the acetic acid produced. From the amount of acetic acid produced
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Summary: Frontline PBS Documentary on the real CSI In this video Correspondent LOWELL BERGMAN questions the scientific validity of forensic science. He also expresses that it is not as simple as it appears on television shows. Detective. Joanna Grivetti who is a crime scene investigator in Richmond‚ California explains that the real life CSI is getting dirty‚ smelling things you don’t want to smell‚ seeing things you don’t want to see and dealing with blood in order to collect evidence that may
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TDDC17 -‐ Lab 3 Part 2 Q5 P (Meltdown) = 0‚02578 P(Meltdown | Ica weather) = 0.03472 b) Suppose that both warning sensors indicate failure. What is the risk of a meltdown in that case? Compare this result with the risk of a melt-‐down when there is an actual pump failure and water leak. What is the
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Unit 2 lab 1: common linux commands 1. try giving the following commands and observe the behavior with each combination of options and arguments. A. list the names of the files in the working directory Is. Desktop Documents Downloads Music Pictures Public Templates Videos B. by default‚ Is does not list files that have hidden filenames 9filenames that begin with a period; Sobell‚ page 190). List the names of all files in the working directory‚ including those with hidden file names. Is
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Any sign of yellow should be inter preted as a positive reaction‚ orange should be considered negative. Lactose Bacterial fermentation of lactose‚ which results in the formation of acidic end products‚ is indicated by a change in color of the Indicator present in the medium from red (alkaline) to yellow (acidic). Any sign of yellow should be interpreted as a positive reaction; orange should be considered negative. Arabinose Bacterial fermentation of arabinose‚ which
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DISCUSSION In this experiment‚ we will extract plasmid DNA that carrying pKan and pAmp from E. coli that have been cultured overnight in LB media containing antibiotic kanamycin and ampicillin respectively. So‚ the DNA that will be introduced later will make the bacteria resistance to antibiotic kanamycin or ampicillin. A plasmid is a small‚ circular‚ double stranded DNA molecules and cloning vector that are widely used for recombinant DNA technology. It can be physically separated from chromosomal
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I watched the film “Dedicated to Chaos PBS Episode 7” . The film talks about the changes Jazz was going through during WWII. Many Americans were already used to Swing music that it was already considered America’s music during the war. Although Swing music was popular among the majority of Jazz musicians‚ some musicians were in fact tired of the many restrictions found in Swing. So they decided to change the formula of Jazz music once again to create a highly complex form of Jazz: Bebop. The predominant
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Chemistry HL Block D 19/9/12 LAB REPORT #1 LIMITING REAGENTS INVESTIGATION Aim: To determine the limiting reagent and percent yield of the reaction between potassium iodide with lead (II) nitrate solution. Apparatus required: Safety glasses‚ funnel stands‚ watch glass‚ oven‚ electronic balance‚ wash bottle with distilled water‚ test tubes‚ 10.0mL 0.50M lead (II) nitrate‚ 10.0mL 0.30M of potassium iodide solution‚ two 100.0 mL beakers‚ funnel‚ filter paper. Reaction Involved in Experiment:
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harmless substances water and oxygen. The goal of this lab is to measure the reaction rate of this process in different substances such as a liver‚ a vegetable‚ and breast tissue. By using variables such a pH and temperature we are able to how the rate of reaction is altered or improved. If it has improved‚ the optimum has been discovered and the enzyme will create a higher reaction rate. If above the optimal points‚ proteins will denature and the reaction rate will remain the same. This is vital for cellular
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1. Who sang at the Grammy’s in Spanish in the late 1990s? What was the reaction? Ricky Martin shocked the audience by singing in Spanish at the 1990’s Grammy Awards. Eventually‚ the audience gave Martin a standing ovation for his brilliant song. 2. When did Latin music burst back on the scene? What song brought it back to the mainstream? What effect did it have? Latin music came back onto the scene 15 years before Ricky Martin’s performance with Gloria Estefan’s “Conga”
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