experiments). 1.1 MEASUREMENT OF THE DENSITY OF A LIQUID 1.1.1 Objective The density of a liquid is to be measured using a hydrometer. 1.1.2 Theory A hydrometer uses the principle of buoyancy to determine the specific gravity of a liquid. Here‚ the weight of the hydrometer (set by the metal spheres in its bulb) is balanced by the buoyancy force exerted by the liquid in which it is immersed. The buoyancy force is the weight of the liquid displaced by the solid. Figure 1.1 presents
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determine the density and specific gravity of solids and liquids applying Archimedes’ Principle. To determine the density of solids (Part A) and the specific gravity of two unknown liquid sample (Part B)‚ they had made use of platform balance to measure the mass of the metal sample tied by a string in air and then submerged inside a 250-ml beaker filled with water. They had computed the specific gravity of each sample metal using a formula‚ weight in the liquid‚ loss of weight in the liquid and computed
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I LIQUID STATE ii GASES STATE In solid molecules are very closed spaced where as liquids. The spacing b/w the different molecules is relatively large and in gases the spacing b/w molecules is still large Its means the intermolecular cohesive forces are large in solids‚ smaller in gases and extremely small in gases and on account of this fact solids posses compact and regional form‚ liquids molecules
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DETERMINING A LIQUID ’S VISCOSITY USING MARBLES An Investigatory and Exploratory Project In Partial Fulfillment of The Requirements in Chemistry ABSTRACT The project is all about viscosity. Viscosity is a very important quality of liquids that scientists‚ engineers‚ and even doctors are frequently trying to measure and change. It is difficult‚ for example‚ to transport highly viscous crude oil through offshore pipelines‚ so scientists and engineers
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Solutions (Week-01) Chapter-01 1-12 A plastic tank is filled with water. The weight of the combined system is to be determined. Assumptions The density of water is constant throughout. Properties The density of water is given to be = 1000 kg/m3. Analysis The mass of the water in the tank and the total mass are mw =V =(1000 kg/m3)(0.2 m3) = 200 kg mtotal = mw + mtank = 200 + 3 = 203 kg Thus‚ 1-14 The variation of gravitational acceleration above the sea level is given as
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Nutrition Density Essay After having calculated the nutrient density of seven food groups in a spreadsheet‚ the food group that came to have the highest Nutrient Density was the vegetable group obtaining an average of 7.76712 Nutrient Density. The food group that came to have the lowest Nutrient Density was the “junk food” group‚ having an average of 0.24845 Nutrient Density. One of the factors that contribute to foods having a high or low Nutrient Density is the amount of calories. I noticed that
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Lab report: Viscosity of Liquids Introduction This experiment focuses on measurements of different trials of various concentrations. The collected data is used to compare and contrast to the ideal binary solutions and their components. The Ostwald viscometer is a useful laboratory equipment to measure the viscosities of many binary solutions. Background Molecules have the ability to slide around each other‚ result in a flow. Such a flow has a resistance called viscosity. Microscopically
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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‚ and volume are measured by this system. There are many different
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used to cool hot vapors or liquids Test Tube A small cylindrical glass used for heating small amounts of liquid open at the top‚ usually with a rounded U-shaped bottom. Test tubes are widely used by chemists to hold‚ mix‚ or heat small quantities of solid or liquid chemicals Evaporating Dish A porcelain used in evaporating chemical solutions Evaporating dishes are used to evaporate excess solvents Beaker Thin glass vessel used as container and heating liquids It is used for stirring
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Part I: Density of Unknown Liquid Calculate the mass of the liquid for each trial. (Subtract the mass of the empty graduated cylinder from the mass of the graduated cylinder with liquid.) Trial 1: Empty graduated cylinder is 25.5 subtracted from 36.5 of the liquid and the cylinder combined equals 11 grams of liquid. Trial 2: 36 grams of water and liquid combined minus the 25.5 of the empty cylinder means equals 10.5 grams of liquid only. Trial 3: Again 36 grams of liquid and the empty cylinder
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