Assistant section. 7. Soak the dish in a 10%-bleach solution for 1 hour and then discard it. Part iii: Microbes in the Soil 1. Choose an environmental site to collect a soil sample. Then use a new sample cup to collect a soil sample. 2. Pour distilled water into the cup‚ so the water sits just above the soil level. Mix the water and soil well. 3. Let the sample sit until the soil settles to the bottom of the cup. 4. With a pipet‚ collect a sample of the water layer on top of the soil and inoculate
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REQUIREMENTS 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11 Laboratory Design/Housing/Building Laboratory Furniture Electricity supply and Electrical services Laboratory Instruments/Equipment Sample Digestion System/Hood system Water Supply and Distilled / De-ionized water Glassware/Polytheneware/other Labwares Quality of chemicals Laboratory Work Environment Safe Laboratory Practices Environmental Laboratory Soundness 3.0 ENVIRONMENTAL SAMPLE HANDLING 3.1 3.2 3.3 3.4 3.5 3.6 Sample Tracking
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experiment this hypothesis by placing Daphnia under a microscope and recording the heartbeats before pouring the caffeine and after pouring the caffeine. The apparatus used involved culture of Daphnia‚ cotton wool‚ cavity slides‚ dropping pipettes‚ distilled water‚ caffeine‚ beakers‚ stopcock‚ paper towels and a microscope. Before starting the experiment we had to set up the microscope. We then had to catch the Daphnia with a plastic pipette and place them on a cavity slide which would have a small amount
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Food and Beverage Service Training Manual Preface This training manual is meant to be a guide to all hotel personnel in food and beverage service who are involved in the day-to-day training of staff either part-time. Furthermore‚ it ensures a uniform system of training inputs. It also acts as a self-study guide to any individual who wishes to develop himself/ herself in the vocation of a waiter or restaurant supervisor. The book was developed after understanding the problems that personnel
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From table 1.1‚ it is shown that at wavelength 590nm‚ bromophenol blue has the Amax which is 0.752. Part 2: The effect of concentration on absorbance of bromophenol blue solution Table 1.2a Tube 1 2 3 4 5 6 A B Distilled water(ml) 2.5 2.0 1.5 1.0 0.5 0 Bromophenol blue 10mg/L (ml) 0 0.5 1.0 1.5 2.0 2.5 Concentration of bromophenol blue(mg/L) 0 2.0 4.0 6.0 8.0 10.0 Absorbance at 590nm (Amax of bromophenol blue) 0 0.182 0.284
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2) The sulphamic acid was then dissolved in 50cm³ of distilled water‚ using a glass rod to ensure it is completely dissolved. 3) Using a funnel‚ we poured the solution into the 250cm³ volumetric flask‚ ensuring the beaker‚ glass rod and funnel were cleaned with distilled water into the volumetric flask to provide that all of the sulphamic acid in the solution was in the volumetric flask. 4) We filled the volumetric flask with distilled water up to the 250cm³ mark‚ making sure that the bottom
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Deionized Water vs. Distilled Water Deionized and distilled waters are both processed forms of water. Deionized water is produced by filtering water to the point where it is free of ions. This ion-free water will strip ions from surrounding material‚ acting like a super-solvent. This is often used in semiconductor and other high-tech processing as a "soft" solvent and relatively cheap cleaning fluid. Distilled water is most often produced by vaporizing less pure source water (tap‚ salt or even
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Child Observations Collection of work structure Child Development FETAC Level 6 D3005 Student: Elizabeth Costa Tutor: Margaret Murphy Child Observation Aim I will conduct a Holistic observation on a male child aged 4. I will observe and assess him on his developmental stages. Introduction This observation is to assess the child’s performance in school throughout the day. The observation will be conducted using Jean Piaget’s theories of the 5 developmental stages
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the 250 mL beakers “Beaker 1” and recorded its weight using the electronic pan balance. After weighing the beaker 3.5 to 4 grams of the mixture had to be added and the exact weight of the beaker and the mixture had to be recorded. Then 50 mL of distilled water had to be added and the mixture had to be stirred for one minute before being poured through the filtration apparatus into another preweighed beaker called “Beaker number 2”. Not all of the substance would be easy to get out of beaker 1 so
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From the graph I can clearly see that Distilled water has a much larger concentration of water then the cell sap in the potato tissue. I can make this conclusion because the results show a big increase in weight of the potato piece. Meaning that water has moved from outside the potato into the potato due to Osmosis‚ proving that the distilled water had a higher concentration of water‚ as water moves from a high concentration to a low concentration. I can also see that the glucose
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