volume is density‚ d and is written as (D = m/v). Using the metric system‚ the ratio for solids and liquids is expressed in g/mL or g/cm. Matter expands and contracts according to temperature. For liquids and solids‚ the change in volume is very small‚ but for gases‚ a temperature results in a proportional change in the volume. Therefore‚ gas density is dependent upon temperature; for liquids and solids‚ the small effect on volume is often ignored. PROCEDURE: A. Density of Water
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known as the fixed points. The temperature range that is typically marked on a laboratory thermometer is −10oC to 110oC. Thermometric liquids are those that are used in thermometers. Some examples of such liquids are mercury and alcohol. The thermometric fluid used by Galileo Galilei in his thermometer was air. Alcohol‚ which is used as a thermometric liquid‚ has the following characteristic properties : 1. Alcohol has a very low freezing point of about −112oC and hence is suitable in thermometers
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Celsius‚ so if the temperature is above that then ice will melt. When salt and water are mixed together‚ the salt dissolves‚ which means the salt breaks into small particles that thoroughly mix with the water. A solution made with a liquid solvent is called a liquid
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Briefly explain the appropriate procedures in handling liquid with a micropipette Basically‚ there are two types of technique used for handling liquid using micropipette. One of them is the forward pipetting and another one is reverse pipetting. The usage of these techniques varies with the type of liquid that will be handled. Forward pipetting normally use for pipetting the aqueous solution‚ acid and alkali‚ volatile compound and also radioactive compound. Forward pipetting has higher accuracy
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2102ENG : Soil Mechanics Hydrometer Analysis Semester 2‚ 2012 Introduction: The hydrometer test is an application of Stokes Law‚ which in essence states that larger particles fall more quickly in a suspending fluid‚ while finer particles remain in suspension longer. The time at which the hydrometer readings are taken determines the size of particle remaining in suspension‚ while the reading on the hydrometer determines the amount of that size. Aim: This
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as Phase Diagrams By _________________ _________________ Material Science Lab #11 Report Introduction The purpose of this lab is to obtain the cooling curves for tin‚ lead and various alloys of these two metals. A phase diagram will be generated from these cooling curves. When a material is heated by adding energy at a constant rate‚ the temperature of the material will increase linearly with time‚ provided a phase transformation does not occur. As temperature of the sample becomes
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In “The Fracking Truth‚” Chris Faulkner argues that fracking has almost no consequences. Perhaps the strongest argument that Faulkner gives for this claim relies on three claims that (1) subsurface contamination from fracking is almost impossible‚ (2) low concentrations of any harmful chemicals used in fracking would be negligible and (3) earthquake activity caused by fracking are nearly moderate to small. In this paper‚ I will argue that this argument fails because there are many consequences of
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screening principle‚ vortex and filtering as a whole‚ desanding‚ material in the field of water treatment‚ such as solid-liquid separation effect is remarkable. It is Widely used in water source heat pump‚ water treatment‚ food‚ medicine and other industrial sectors. And it also used river water‚ well water‚ sand‚ coal washing water‚ industrial concentration‚ solid-liquid separation‚ liquid degassing and the miscibility of separation. Operating Principle: Cyclone desander is based on the principles
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thermal expansion for temperatures between about 18 kelvin and 120 kelvin.[2] [edit]Factors Unlike gases or liquids‚ solid materials tend to keep their shape when undergoing thermal expansion. Thermal expansion generally decreases with increasing bond energy‚ which also has an effect on the hardness of solids‚ so‚ harder materials are more likely to have lower thermal expansion. In general‚ liquids expand slightly more than solids. The thermal expansion of glasses is higher compared to that of crystals [3]
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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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