Lab 2 – Water Quality and Contamination Experiment 1: Effects of Groundwater Contamination Table 1: Water Observations (Smell‚ Color‚ Etc.) Beaker Observations 1 Water is clear and uncontaminated. 2 All of the vegetable oil goes to the top of the beaker. 3 The water looks slightly cloudy but not too contaminated. 4 The water changed colors with the detergent and was clearly contaminated. 5 Water was murky from the dirt. 6 The water did not look as contaminated filtering with oil as it did with
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INET Lab Report 2 Microscope and the Cell Template Student: Mavon Riley Email: shantariley@yahoo.com Date: 09/05/2014 I. Purpose of the Microscope II. The Compound Microscope EXERCISE 2.1 – Label the parts of the compound microscope 1. Eyepiece 2. Arm 3. Course Adjustment 4. Fine Adjustment 5. Revolving Nose piece 6. Objective Lenses 7. Stage Clips 8. Stage 9. Iris Diaphragm Lever 10. Condenser 11. Light Source 12. Base EXERCISE 2.2 – Calculate microscope
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Water has polarity. Polarity is the uneven distribution of charge. Water has cohesion‚ adhesion‚ and heat capacity. Cohesion is the attraction between molecules of the same substances. Adhesion is the force of attraction between molecules of a different substances. Heat capacity is the amount of heat it takes to raise temperature of a substance. The experiment displayed shows water can have adhesion and cohesion. The hypothesis of this experiment is if a nonpolar substance is added to water
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Water Quality and Contamination Melody McBride SCI-207 Dependence of man on the environment Robin Glenn September 28‚ 2014 Abstract The lab was conducted at the McBride residence. For this experiment vegetable oil‚ vinegar and liquid detergent was use to contaminate the water. Testing of how ground water is affected by different contaminants was the bases of the experiment. The results were interesting in that when vinegar is filtered through dirt it came out fairly clean‚ it also
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Lab Report Experiment 1 & 2 CHM-101 Amele Takpara Partner: Jessamyn Dupree ------------------------------------------------- Experiment 1 ------------------------------------------------- (Pre-Lab Questions) 1. In the design of a Bunsen burner‚ explain the purpose of a. the gas control valve The gas control valve regulates the rate at which methane enters the burner. b. and the air vents. The air vents control the rate at which air enters the burner 2. Why is a luminous
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flow towards the cooler end. This will make a gradual increase of temperature at the cooler end until an equilibrium temperature is established. Usually‚ the changes that occur within the bar is not instantaneous and will be different at both end. 2. Radial conduction heat transfer Fluid motion that resulted by force over the surface by an external source‚ such as fans or pumps. Small movement of air is generated which limits the heat transfer rate from the hotter surface to the surrounding air
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Lab Title: "The Effect of Salt on the Boiling Point of Water" Lab Question: How does adding salt to water affects it’s boiling point? Prediction : In this paper‚ a newly proposed model based on solvation between pure solvent and salt for prediction of salt effect on vapor–liquid equilibria is presented by using only the vapor pressure depression data of pure solvent+salt systems that compose the mixed solvent with salt system Materials : 200 mL of distilled water‚ 2 beakers
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Bingying Jiang CHM 152ll April 25‚ 2013 Some Factors that Affect the Rate of a Reaction BACKGROUND: Chemical reactions occur at different rates. In this experiment I will consider some of the key factors that influence the rate of a reaction: * nature of reactants - particle size * temperature * catalysts According to the collision theory‚ the rate of a reaction depends on the frequency of collisions between reacting particles. The more frequent the collisions‚ the
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Lab 2 – Water Quality and Contamination Experiment 1: Effects of Groundwater Contamination Table 1: Water Observations (Smell‚ Color‚ Etc.) Beaker Observations 1 Clear no smell 2 Oil was on top and did not mix with water and it had a slight smell 3 A slight haze look to water with strong smell of vinegar 4 Water turned cloudy with bubbles on top and was the hardest to see through 5 100 ml of water filtered through 60 ml soil resulted in slight brown soil colored water 6 100 ml water
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Lab 2 – Water Quality and Contamination Experiment 1: Effects of Groundwater Contamination Table 1: Water Observations (Smell‚ Color‚ Etc.) Beaker Observations 1 Water is perfectly clear/No odor 2 It was cloudy with an oil sits on top of the water/no odor 3 This sample had a slight odor which was mostly unidentifiable and had good clarity 4 Bubbles formed on surface and had a cloudy appearance /no odor 5 Some sediment in water and brown in color /no odor 6 Water is brown in color with some
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