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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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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"What Rights Did Women Have" What rights do you bealive a women has compared to a man? Do you think they have just as much or less than a hard working respectable man. If you aren’t sure about your answer then continue reading about an officer of the Women’s Rights from 1848-1928. Today it is November of 1903 and there are me‚ and many other guards and police officers waiting on the landing dock of Plymouth‚ England. Around noon the steam boat appeared out of the misty
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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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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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discussion I would like to contrast controlled laboratory experiments and naturalistic observations research methods. In controlled laboratory experiments‚ the researchers conduct their studies in a controlled setting. Conversely‚ studies involving naturalistic observation‚ examine participants in their natural environment. Below I present a contrast of the most essential features of each of these methods of research. Controlled laboratory experiments: • Objective: Seek to compare two or more conditions
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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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purpose of this experiment was to discover if using sugar and tonic water with water would increase the growth rate of barley. In this experiment‚ we changed two variables‚ the independent variables sugar and tonic water. We added one tablespoon of each substance to four ounces of water which will be used to nourish the plant. We tested these experimental controls to determine if any of the substances would help accelerate the growth of the barley. If the sugar water or tonic water mixture successfully
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Introduction: Water’s ability to stick to itself is surface tension. In this lab we were able to measure and detect surface tension by dropping water‚ drop by drop‚ onto a penny. The quantity of droplets that fit on the penny was impressive. Hypothesis: The detergent will thicken the water making a tighter surface tension. Prediction: If soap increased the surface tension‚ then expansion will happen. Materials: (1) Pipette (2) Water (3) Penny (4) Liquid Soap Method: Retrieve materials‚ and set two
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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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