Allison Oneal Chemistry I June 20‚ 2013 Dr. Michael May Properties of Gases I. Abstract The purpose of this experiment is to examine the properties of several gasses‚ which were the products of a reaction‚ and examine the way the gasses react under certain conditions. These conditions‚ such as introducing a flame to the gas as well as oxygen and CO2‚ caused other reactions to occur. Experiment Before I began the experiment I gathered all my supplies from the given list in the lab manual.
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mayonnaise similar to manufactured mayonnaise. Introduction The purpose of this experiment is to determine the methods and techniques required to produce mayonnaise. Mayonnaise is an emulsion‚ which means that it is a stable combination of two liquids that are immiscible. They key to this concept is that the combination must be stable. Water and oil‚ for example‚ do not combine to form an emulsion because of hydrogen bonds that form between each other in water molecules. These bonds prevent oil
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com/dictionary/aerodynamics Other: aerios‚ concerning the air‚ and dynamis‚ which means force. http://www.grc.nasa.gov/WWW/K-12/airplane/bga.html Bernoulli’s Principle: • The relationship between the velocity and pressure exerted by a moving liquid • States that for an inviscid flow‚ an increase in the speed of the fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid’s potential energy. • states that the faster a fluid (such as air or water) flows over
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faster and longer the particle is centrifuged‚ the smaller the particles are that will be separated. Separation occurs by causing the larger particles to separate to the bottom as a particle or pellet‚ and the smaller will remain suspended in the liquid‚ or supernatant. Due to smaller particles separating out first‚ centrifugation is often done in small steps so that the supernatant takes off all larger unwanted cells first. The basic process of centrifugation: 1) The tissue must be homogenized
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water) become denser. Two experiments that I found to be quite similar to this one were the Density Column and the Bubbling Lava Lamp. The Density Column measures the density of seven different liquids by layering them on top of each other. By doing this experiment‚ one is able to find out which liquid is the most dense; with the order ascending
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dichloromethane and the solution was poured into a separatory funnel. 2. 20 ml of aqueous sodium bicarbonate solution was added to the dichloromethane. A stopper was placed on the separatory funnel and was shaken and pressure was frequently released. The 2 liquids separated into clear layers and the lower layer (dichloromethane layer) was tapped into an Erlenmeyer flask. The aqueous layer was placed into a 400 ml beaker. The dichloromethane was placed back in the separatory funnel. 3. The dichloromethane was
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Lab # 4 Determination of Density of Liquids Name: Lab Partner: Period: 3 Date Completed: 9/23/2014 Date Submitted: 9/29/2014 Data TABLE 4 DENSITY OF SALT SOLUTIONS-INDIVIDUAL GROUP’S RESULTS Concentration (%) Mass (g) Volume (mL) Density (g/mL) 0 9.9522 10.00 0.9952 4 10.1291 10.00 1.013 8 10.5233 10.00 1.052 12 10.7487 10.00 1.075 16 11.0297 10.00 1.103 Unknown # 10.6234 10.00 1.062 Calculations 1. Show all density
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Activity; Making a lava lamp effect.Number of Children; 5/6 Setting; Primary School Year 3. Preparation Time; 15 minutes. Age of Children; 7-8 Years old. Activity Time; 30 minutes. Resources: | Rationale: | Clear plastic bottle. 3/4 cups of water. Vegetable oil. Food colouring. Alka –Seltzer tablets. | Get your clear plastic empty bottle‚ put 3-4 cups of cold water into the bottle‚ then add the vegetable oil till its nearly full up to the top‚ then add 10-15 drops of food colouring
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Abstract The objective of this experiment was to observe multi-step purification of benzoic acid after performing the extraction from a mixture containing benzoic acid‚ cellulose‚ and methyl orange. Recrystallization was done to remove impurities from the sample. The amount of BA recovered during recrystallization is much less than the extracted amount of BA. The difference between the pure and impure samples was observed by comparison of melting points. It was found that impure samples will have
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Hydraulic fracturing is a process in which fractures in rocks below the earth’s surface are opened and widened by injecting chemicals and liquids at high pressure: used especially to extract natural gas or oil. How the process works: The process includes steps to protect water supplies. To ensure that neither the fluid that will eventually be pumped through the well‚ nor the oil or gas that will eventually be collected‚ enters the water supply‚ steel surface or intermediate casings are inserted
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