Average Density (kg/m^3) 2 9551 6046.24 3 5305.16 4 3282.57 Castrol oil results: Density of the liquid Castrol was found by dividing its mass over its volume at temperature of 26℃ as follows: Density= (mass of the liquid)/(Volume of the liquid used) Density of liquid= mass/volume= (24.5g )/(25 ml)= 0.98 g⁄ml =980 kg/m^3 The three balls were dropped into the liquid containing Castrol oil at a known distance of 0.252 m and the following data were recorded: Castor oil Travelling
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technique is: Number Moles Concentrated Solution = Number Moles Dilute Solution. An instrument called a spectrophotometer detects the amount of light that passes through the sample and the percent transmittance can be recorded from the meter. In the lab‚ multiple homogeneous solutions are made. There was not a way to determine the differences in concentrations‚ but the Spec 20 made it possible to measure the difference. The Beer-Lambert Law is a graph used to record
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otherwise known as the "Philippine Ecological Solid Waste Management Act of 2000‚" and by virtue of Executive Order No. 192‚ Series of 1987‚ the Department of Environment and Natural Resources hereby adopts and promulgates the following rules and regulations PART I GENERAL PROVISIONS Rule I. Preliminary Provisions Section 1. Title These Rules shall be known and cited as the "Implementing Rules and Regulations of the Philippine Ecological Solid Waste Management Act of 2000." Section 2. Purpose
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Experiment 14: Molar Mass of a Solid Angela Parra Laboratory Partner: Eugenia Jimenez Chemistry 1310 Instructor: Dr. Gao Laboratory Assistant: Lauren February 7‚ 2015 Abstract: The purpose of this experiment is to determine the molar mass of an unknown solid. The freezing point of a solvent (Cyclohexane) was determined‚ and compare to the freezing point of Cyclohexane with the addition of two different concentration of unknown solid. The pure substance of Cyclohexane has defined physical
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| 1.14 | 80.26 | White crystalline solid‚ with odor | benzophenone | | 182.217 | 1.11 | 47.9 | Barely hazardous‚ don’t get in contact with eyes or skin | Methanol | | 32.04 | 0.79 | -98 | Extremely flammable | Petroleum ether | | 86.18 | 0.77 | -95 | Extremely Flammable | Procedure: 1. 2. Add 80mg of naphthalene to Craig tube. Add few drops of methanol hot solvent. 3. Place tube in hot water bath. 4. Add methanol dropwise until all solid dissolves. 5. Remove tube from heat
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the percent yield by dividing the expected yield‚ the amount of product that should be produced based on your stoichiometric calculations‚ by the actual yield‚ the amount of product that is experimentally obtained from a chemical reaction. In this lab‚ I have determined the reaction for mixing two reactants together; I measured out 0.005 moles of each reactant‚ lead (II) nitrate and potassium chromate. I dissolved‚ mixed‚ and made them react to make products; I compared the mass of the two reactants
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Introduction The purpose of this lab was to identify unknown bacteria cultures using various differential tests‚ and my unknown bacteria is #17. The identification of these unknown cultures was accomplished by separating and differentiating possible bacteria based on specific biochemical characteristics. Whether the tests performed identified specific enzymatic reactions or metabolic pathways‚ each was used in a way to help recognize those specifics and identify the unknown cultures. The differential
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Ciara Clark and Caroline Bedenbaugh 4A Density Lab Objective : The purpose of this lab is to observe and explore the relationship of a substance’s volume vs. its mass‚ and to calculate an object’s density by using the relationship of its mass and volume. Data Tables : Data: Density of Water Run Mass of graduated cylinder volume of water added mass of water 1 25.28 g 0.00 mL 0.00 g 2 26.15 g 1.00 mL 0.87 g 3 27.18 g 2.00 mL 1.90 g 4 28.19 g 3.00 mL 2.91 g 5 29.13 g 4.00 mL
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The main purpose of this lab is to explain what emulsifiers and emulsions are and how emulsifiers affect emulsion stability. An emulsion is a mix of to or more liquids that usually do not mix together. One liquid is evenly dispersed in small droplets throughout the other liquid. Many emulsions contain water as one of the phases. There are two different types of emulsions. One type of emulsion contains oil droplets that are dispersed within water. It is considered oil in water emulsion. The other
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different types of food substance presence in food sample Assumption: Controlled: using the same amount of food sample in different test Procedure: Solid: Grind the food with distilled water. Squeeze the ground materials through layers of muslin. Liquid: Put 1 cm3 of the liquid food sample into test tubes. -grease spot test: A drop of liquid food sample was added to a filter paper and was let to dry for 5 minutes. The filter paper was held up to the light and any translucent spot was
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