INCIDENT REPORT INSTRUCTIONS Northwestern University Vice President for Research University Safety Committees Office for Research Safety ***A sample completed form is appended to these instructions.*** When to Submit an Incident report An incident report must be delivered to the Office for Research Safety within five days of the incident. Reports are reviewed by the Chemical and Biological Safety Committee‚ or the Radiation Safety Committee. An incident is defined as any unplanned and
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Once recorded‚ it was possible to find the absorbance of the solution by using the equation: A=2-log(%T). The Beer-Lambert Law was used to provide a calibration plot on the relationship between absorbance and concentration. From Figure 1‚ the calibration curve shows the absorbance vs. concentration of the standard solutions of Cu2+. Figure 2 shows absorbance vs. concentration of concentrations made. The solutions in figure two were found my using the
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05_SSLM_p227_294 8/19/04 11:47 AM Page 271 Name ___________________________ Chapter 23 • Date ___________________ Functional Groups Class __________________ SMALL-SCALE EXPERIMENT VITAMIN C IN TABLETS 38 Small-Scale Experiment for text Section 23.3 OBJECTIVES • Determine the vitamin C content of vitamin C tablets by iodometric titration. • Observe the oxidation of vitamin C in aqueous solution. INTRODUCTION Vitamins regulate biochemical reactions that take
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Soxhlet extractor From Wikipedia‚ the free encyclopedia Jump to: navigation‚ search A schematic representation of a Soxhlet extractor 1: Stirrer bar 2: Still pot (the still pot should not be overfilled and the volume of solvent in the still pot should be 3 to 4 times the volume of the soxhlet chamber) 3: Distillation path 4: Thimble 5: Solid 6: Siphon top 7: Siphon exit 8: Expansion adapter 9: Condensor 10: Cooling water in 11: Cooling water out Animation describing mechanism of Soxhlet
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Name: LaGarrian Harris|Date: 2/10/2013| Exp 2: Laboratory Techniques & Measurements|Lab Section: 1411| Data Tables: Length Measurements Object Measured|Length in cm|Length in mm|Length in m| Key|5.2|52|0.05| CD|12.0|120|0.12| Spoon|15.0|150|0.15| Warm Temperature Measurements Hot tap water temperature __44.0 ˚?C 111.2˚?F 317.15_K Boiling water temperature at 5 min __100_˚?C _212 ˚?F 373.15_K Cold Temperature Measurements Cold tap water temperature _19.0_˚?C _66
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The Hadley Emergency drinking water supply is contained in two small manmade ponds situated on the down slope of the Holyoke Mountain range. The research done in this study examined the quality of the water for drinking purposes and a healthy eco-system. The ponds are oblong shaped with one input and one output of water for each. The upper pond is teaming with aquatic plant life including lily pads‚ tall grasses and thick bushes all congregating around the edges. The lower pond also contains
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In this experiment the initial mass of the sodium carbonate used was 2.69g. In each titration‚ 3 drops of methyl orange was added to the sodium carbonate solution. With this information the titration can begin‚ and the results obtained are shown below: Titration readings Titration Rough 1 2 3 4 5 Initial 0.00 4.30 22.00 21.00 15.00 25.90 Final 4.30 22.00 38.60 37.60 32.60 42.20 Titre (cm3) 4.30 17.70 16.60 16.60 17.60 16.30 Therefore‚ the average titre would be calculated as follows;
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1.0 Aim The purpose of this experiment is to use Volumetric Analysis to determine the concentration of acetic acid in white vinegar. 2.0 Theory The concentration is a measurement of relative amounts of solute and solvent. There are many diverse ways of expressing concentration but the most accepted and widely used is molar concentration and regularly referred to as molarity which is defined in mole‚ the amount of solute dissolved in one litre of solution. [pic] In this experiment there
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During the conducted experiment‚ a maximum of 5 trials were conducted due to limitations of resources to test the effect of a range of temperature correlating to the volume of Pink Lady’s red apple juice to indicate enzymatic performance of pectinase to ensure reliability and allow scope for statistical evaluation. The trend is similar to the curve as seen in Figure 2 and it can be concluded that the trend is confirmed by the data collated. However‚ 5 trials are not sufficient enough to depict the
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Gather materials and rinse the glassware with distilled water and dry with a paper towel. 3. Pour up to 250ml of cold water at 27 °C in each of the three beakers. If the water is too cold‚ set it aside for a short time so the temperature will drop to 27 °C‚ repeatedly check the thermometer
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