ANALYSIS OF MOUTHWASH Background Information: Commercial mouthwashes are mixtures of water‚ alcohol‚ dyes‚ flavorings‚ and other compounds. In this experiment‚ you will use gas chromatography to determine the alcohol content of the mouthwash. Since the volumes of alcohol and water are not additive when mixed‚ a calibration curve must be used. It will provide the correction factor needed for alcohol-water mixtures. The calibration curve will be prepared by placing a known amount of alcohol
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fluid for correction is NOT permissible on the Answer Sheet. Each candidate must show on demand his/kr Admission Card to the Invigikator. I o candidate‚ without special permission of the Superintendentor Invigilator‚ would leave his/ her seat. U The candidates should not leave the Examination Hall without handing over their: Answer Sheet to the Invigilator on duty and sign the Attendance Sheet twice. Cases where a candidate-has not
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kills the bacteria‚ it is called bactericidal. If the agent inhibits the growth of bacteria‚ it is called bateriostatic. (Fundaments of Microbiology Lab Manual) The purpose of this experiment was to examine the effect different disinfectants and antiseptics‚ which are used to decrease the number of microbes‚ on Escherichia coli and Staphylococcus aureus. The effectiveness of the chemical agent was determined by the size of the zone of inhibition around the disc incubated on soft nutrient agar seeded
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including sterile water‚ and their after two days their zones of inhibition were measured and recorded. A hypothesis that was formulated before experimenting was‚ “If the type of disinfectant is Mouthwash‚ then it will allow for the least amount of bacteria growth because the chemicals present in Mouthwash combined with the acidic environment it bring will make it very hard to allow for any bacteria growth”. The independent variable in this experiment was undeniably
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Books Principles of Organization Behavior Realities and Challenges‚ 6th Edition. Mc Graw Hill‚ Human Resource Management‚ 9th Edition. Mc Graw Hill‚ Human Resource‚ 17th Edition. Robert Lucas‚ Customer Services skills for Success 5th Edition‚ Mc Graw Hill‚ 2012. Unpublished Thesis “An Assessment of Quality of Services Offered by Various Cellular Phone Repair Centers in Batangas City”‚ Marlon D. Banaag‚ Gechis M. Abanilla‚ Geraldine G. Ambus‚ 2007. “Implementation of Total Quality
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Olivia Teasdale Mrs. Gaspar SBI3U1 10/07/13 The Effect of Disinfectants and Antiseptics on Bacteria Growth Abstract The purpose of this lab was to determine the effect of disinfectants and antiseptics on bacterial growth. By observing the effects of 5 different inhibitors including alcohol‚ bleach‚ soap solution and distilled water‚ it was determined what antiseptic or disinfectant was able to best inhibit this kind of bacterial growth. Nutrient Agar was poured into a Petri dish with four quadrants
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just a low-priced‚ handy‚ organic‚ and safe to use anti-bacterial mouthwash so that the bacteria in their mouth will be prevented in multiplying. This is one way of the researcher to help the community and the people on it so that will have a fresh breathed community. Review of Literature Guyabano
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Effects of Antiseptics and Disinfectants Purpose: The purpose of this lab is to discover substances that can slow the growth of‚ or kill‚ microorganisms. Hypothesis: The antiseptic that will prevent the growth of bacteria the most is iodine. The disinfectant that will prevent the growth of bacteria the most is bleach. Procedure: To begin the lab‚ turn the agar plate over and divide the plate into four quadrants and label the agar plate whether you
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The effect of toothpaste to oral bacteria VS the effect of mouthwash to oral bacteria Problem: Bacteria in ones’ mouth causes many problems for oneself in the future. For example‚ gum diseases‚ bad breath‚ etc..‚ Toothpaste and mouthwash is promised to kill most of the bacteria in one’s mouth‚ but which is more effective at killing the bacteria and preventing future problems? This experiment and research is going to prove which is more effective at killing oral bacteria
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Before Surgery in the early 19th century is dangerous and painful. There is no way to relieve the pain felt by patients during operations. Surgeons do not yet know how to control blood loss or infection‚ and operating theatres are dirty and dangerous places to be.Some surgeons superstitiously prefer to wear their ‘lucky’ coat in the operating theatre – a coat worn during a successful operation in the past. They do not wash their ‘lucky’ coat between operations in case this breaks their run of
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