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    Liquid Liquid Extraction

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    Liquid Liquid Extraction We were asked to extract benzoic acid from a kerosene-benzoic acid mixture. This was to be done using the stirred liquid-liquid extraction column in the senior laboratory. Fresh water was used as the continuous phase in the extraction. We were asked to measure the benzoic acid concentrations of the feed, raffinate, and extract streams. These measurements were to be made at several different steady-states. The number of theoretical stages and the height of the theoretical

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    Liquid Diets

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    Liquid Diets Obesity is one of the most common problems faced by people today. Since thirty-four million Americans are estimated to be obese, one out of every three Americans must live with this disorder. Obesity is defined as a body weight consisting of 20% or more above the standard ideal weight (http://www-med.stanford.edu/school/DGIM/Teaching/Modules/obesity.html#RTFToC12). In order to reduce obesity, most invest in diet and exercise programs. Recently, liquid diets have been positively

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    Ionic Liquids

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    Introduction Ionic liquids is a broaden term covering several possible systems. Ionic liquids are liquids that consist of exclusively ions, which exhibit ionic conductivity. The traditional definition known is molten salts or fused salt, which tend to have high melting points. For a while now the generalized definition of ionic liquids has only limited itself to the specific definition, which have melting points or has glass transition temperatures of 100 degrees. There are also the room temperature

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    Measuring the Viscosity of a Liquid Aim The aim of this experiment is to find out how fluid Bath Oils really are by measuring its viscosity. Plan The first thing that I'll do is to measure the spheres volume by first measuring its radius. I will then, by calculating the spheres mass, be able to calculate the density of the sphere. This will be used later when calculating the viscosity of the bath oil. I will then find the density of the bath oil, also used during calculations later

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    Solids, liquids, and gases are the three main, or fundamental phases of matter. Each one has a different density and a different level of stability. What determines the stability of each phase is the bond between it's atoms. The tighter the bond between it's atoms the more stable that phase of matter is. Solids are the most stable form of matter, followed by liquids, and then gases. Solids have a definite shape and do not take the shape of their container. Liquids do not have any definite shape and

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    1.3.4 Tuned liquid damper: A well designed partially filled water tank can be used as a vibration absorber to reduce the dynamic motion of a structure and is called as a tuned liquid damper (TLD). Tuned liquid dampers (TLD) and tuned liquid column dampers (TLCD) apply indirect damping to the system and this improves performance of the structure in case of vibrations. A TLD absorbs structural energy by viscous actions of the fluid and wave breaking. Tuned liquid column dampers (TLCDs) are a special

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    Liquid Crystals

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    We were all taught that there were four states of matter: Solids, Liquids, Gases, and Plasma, but some states of matter cannot be defined by one the these four. One of which are liquid crystals. These crystals have properties of both liquids and solids. They physically flow like liquids, but also share characteristics of crystalline solids. There is also more then one type of liquid crystals along with their different phases. Since they have so many properties, its no wonder how much we use them

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    The Effect of a Liquid on the Heat Given Out in a Reaction During the course of this investigation, I will attempt to discover whether the concentration (or amount) of a liquid affects the amount of heat given out in a reaction. Background Knowledge The knowledge that I know will be of use to this investigation is: * Neutralisation always produces a salt * An alkali will neutralise an acid * Alkalis are not the only compounds that will neutralise acids * When acids and alkalis

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    the Cooling of a Liquid in Cups with Different Materials Aim: To investigate how a liquid cools down in cups with different materials. Prediction: The factors which will affect the amount of heat loss are: § Material of the cup – Conduction § Colour – Radiation § Surface area of cup § Amount of water (surface area:volume ratio) § If the cup has a lid or not – Convection and Evaporation § Room temperature § Thickness of the cup § Temperature of the liquid § Air movements

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    Conclusion: To conclude, the hypothesis was proven right. Syrup, the most viscous liquid, caused the metal ball to have the slowest time. The strong frictional force that acted against the ball, caused the ball to have the slowest time. For example, water had the smallest frictional force which was 8.73 × 10-4 N, but syrup had a frictional force of 2.9x10-3 N and the time it took the ball to fall through the water was .16 s and for syrup was 5.03 s, which took longer than water .Therefore, the ideal

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