Results: Limiting Reactant: Eq 1 Limiting reactant = Benzoin Theoretical yield of Benzil: Eq 2 Theoretical Yield Benzil | 0.296 g | Mass of Crude Benzil | 0.188 g | Mass of Final Benzil | 0.127 g | % Yield | 43% | % Recovery | 66% | Table 1: Mass of crude/final Benzil‚ % yield‚ and % recovery Percent Yield: % Yield = (Final product/Theoretical product) x 100 Eq 3 = (0.127 g/0.296 g) x 100 = 43% yield Percent Recovery
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Only 0.09g of the theoretical 2.055g yield was obtained. The boiling point was 104° C‚ which is higher than the literature value of 101° C. This is due to the sample being somewhat impure‚ as impurities tend to increase boiling point. When IR spectroscopy was performed‚ there were no OH stretches‚ meaning that the OH- was replaced successfully by the Br-‚ and the water was separated out. The weight of our t-Pentyl Chloride sample was 0.20g. The percent yield was calculated to be 4.17%. The theoretical
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Chapter I: Background of the study: Nowadays people are focusing in herbal plants especially those who are common in the environment. One of the example is the guava plant (Psidium guajava Linn). Based on research this plant is good for healing and treating wounds and other skin infections. So in my research I wan’t to make a bathing soap out of it‚ cause I know that it is effective. People‚ researchers‚ scientists were focusing to medicinal plants. They want to prove that there are plants
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that it shows how by using the spectroscopy technique we can determine the interaction between matter and radiated energy and discover that some objects give off and adsorb different spectrum of light. The article makes you understand the different stages of the lifecycle of the sun. Astronomers study light which comes from distant objects to determine its composition‚ temperature‚ speed‚ and rotation of distant objects. This process is called spectroscopy. Spectroscopy was first used to study celestial
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to transmit the signals from the airway adapter to the monitor for the purpose of displaying the EtCO2 values. • Sensor- The purpose of the sensor is used to collect a sample of gas from the patient’s airway and using infrared spectroscopy or mass correlation spectroscopy method to determine the value of EtCO2. Depending on the type of operation‚ the sensor is either placed on the adapter itself or is located at a distance from the adapter.
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and unspoiled. Antimicrobial properties of essential oils (EOs) reveal that Gram-positive bacteria are more vulnerable than Gram-negative bacteria. A number of EO components have been identified as effective antibacterials‚ e.g. carvacrol‚ thymol‚ eugenol‚ cinnamaldehyde and cinnamic acid‚ having minimum inhibitory concentrations (MICs) at higher dilutions in vitro. EOs comprise a large number of components and it is likely that their mode of action involves several targets in the bacterial cell. The
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order to synthesize our metal complexes‚ we were able to make both Copper and Ruthenium metals. From this‚ we combined each metal complex with DMSO by refluxing the compound. The metal complexes were analyzed through their melting point and IR spectroscopy to determine whether the metal bonded to a Sulfur atom or an Oxygen atom of the DMSO. After analyzing the IR spectrum‚ it was determined that S=O shifted to a lower wavenumber in CuCl2~2DMSO and that S=O shifted to a higher wavenumber in RuCl2~4DMSO
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(Lecture) 3 hr (Practical) 3 Core CHM 456 Part Course Status Pre-requisite : : : Course Outcomes : Upon completion of this course‚ students should be able to: 1. Determine functional groups present in organic compounds using Infrared Spectroscopy and interpret Nuclear Magnetic Resonance spectra and relate the information to structural features of organic compounds. State and explain principles governing the physical and chemical properties of aldehydes‚ ketones‚ carboxylic acid‚ carboxylic
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product from the cyclohexanol starting component‚ previously learned lab techniques such as extractions and simple distillation were used. The formation of the product was verified by performing a Bromine test as well as an analysis using IR Spectroscopy. A percent yield of 8.33% was obtained. Introduction: In an elimination reaction‚ two substituents are removed from a molecule in either a one or two-step mechanism. There is a removal of a leaving group and a proton to form alkenes. The
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Our data displayed supports the notion that by increasing the acidity of the catalyst‚ the production of aspirin will increase. Our hypothesis was proven correct. In our data‚ we calculated the percent yield and percent error of each trial. We also calculated the average of the percent yields and the percent errors of each catalyst. In the end‚ we saw that for the sulphuric acid catalyzed aspirin‚ we saw an average of 69.7% percent yield and an average 30.3% percent error. As for the phosphoric acid
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