process of distillation. Distillation is the separation of volatile substances mixed with nonvolatile substances by boiling the mixture to alter the phase of the volatile substance. The researchers used the simple distillation set up to conduct the experiment. 25 ml of The Bar Vodka was used and 7 ml of distillate was collected before a temperature of 95 degrees Celsius was reached. Collected distillate was then subjected to a flammability test to confirm ethanol content. The percent ethanol was computed
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6. Below are listed some objects of varying degrees of abstraction. Suggest properties of each of these objects that can be measured by each of the four basic types of scales. There are relatively few pure interval scales found in business research. Almost all text discussions of this scale refer to the example of temperature scales. However‚ some attitude scales such as the Likert and Semantic Differential‚ are claimed to approach interval characteristics. In addition‚ approximate interval scales
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Psychosocial Factors: Stress and Health Management Goal of Every Industry…. Increased Productivity Factors….You wish you could Control I’m Stress Increased Productivity Other Factors Stress • “An individual’s adaptive response to changes in the environment that place demands on the individual.” – People adapt in many different ways • Functional • Dysfunctional – The stimuli that induce stress are called stressors – Stress may be physical or psychological
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Age is not only measured in years. Personally‚ I’m three houses‚ approximately 6‚000 songs‚ and 1‚825 peanut butter and jelly sandwiches old. I can also measure my life in trips to the airport. Each time I fly‚ one more trip documents my life. When I was six airport trips old‚ my mother‚ sister‚ and I drove to Kennedy Airport to fly to England‚ where my father was waiting at our new home. As the grown-ups around me shed tears‚ I could barely contain my excitement about our “vacation‚” unable to grasp
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Experiment 2: IDENTIFICATION OF UNKNOWNS BY TLC AND MP IN COMBINATION Introduction: Thin layer chromatography (TLC) is one of the most valuable techniques in organic chemistry. This is a best method of separating and identifying mixtures of two or more compounds. The separation is accomplished by the distribution of the mixture between two phases: one that is stationary and one that is moving or mobile. Chromatography works on the principle that different compounds will have different
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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 _66.2_˚?F 292.15
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Techniques & Measurements Observations from Procedures Data Table 1 – Length measurements Object|Length (cm)|Length (mm)| Band-Aid Canister|10.3 cm|103 mm| Fragrance Oil Bottle |7.3 cm|73 mm| Pill Bottle|7.1 cm|71 mm| Data Table 2 – Temperature measurements Hot water from tap(ºC )|Boiling water(ºC)|Boiling water – 5 minutes(ºC)| 52 ºC|99 ºC|100 ºC| Cold water from tap(ºC)|Ice water (ºC)|Ice water – 5 minutes (ºC)| 23 ºC|10 ºC|10 ºC| Data Table 3 – Volume measurements Test tube
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Experiment 1: Errors‚ Uncertainties‚ and Measurements Laboratory Report Margarita Andrea S. de Guzman‚ Celine Mae H. Duran‚ Celina Angeline P. Garcia‚ Anna Patricia V. Gerong Department of Math and Physics College of Science‚ University of Santo Tomas España‚ Manila Abstract Measurements‚ defined as a comparison with a standard‚ are essential in the study of physics. However‚ all measurements are prone to errors. There are two sources of errors: systematic errors random errors.
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was laboratory techniques and measurements. The purpose of this lab was to familiarize ourselves with different techniques used in the lab‚ taking proper measurements‚ and how to use the International System of Units (SI). Throughout lab we learned about mas‚ volume‚ length and temperature‚ and to be able determine density and concentration. To be able to documents properly and make effective observations we must be able to understand the International Measurement System. Length‚ temperature‚ time
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Instrument used for measurement Making measurement by usisng some instrument or other is inevitable in physic.Hence‚ ensuring that careful and accurate reading are obtained for any measurement is of utmost importance.Table below shows some most commonly used instrument for making measurement in physics experiments. |Physical quantity |Instrument | |Length |Meter rule
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