DESIGN CONSIDERATIONS * System: Ethanol – water * Feed rate: 225kmol/h * Feed composition: 28 mol% ethanol * Feed condition: 50% saturated liquid & 50% saturated vapor * 97% of ethanol recovery is required * Operating pressure: 1bar * Distillate composition: 81 mol% ethanol * Column type: Sieve tray column * Operating condition: 70% of flooding Applying material balance to the rectifying section (Eqn 01); V=L+D Applying material balance for the more volatile
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the experimental density +/- uncertainty bar D is 11.2+/- 0.6 g/mL. The theoretical density information was founded in General Chemistry Laboratory Manual for CSU Bakersfield‚ CHEM 211‚ 3rd ed. Buschhaus‚ M. 2015. Each experimental identification described was strongly supported by there experimental densities +/- uncertainty and by only being off by 0.06. Both results come out in range of what is being searched for. The bars still have a little more play room with their densities and will still be
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9/22/13 I: Design Title: The Mass of Quartz Purpose: To determine the density slope for water and alcohol and apply the understanding to determine the volume of a quartz sample without measuring the volume or calculating it. Hypothesis: The hypothesis of this lab was by using the density of alcohol we could calculate the density of a quartz samples. Controls and Variables: Independent variable: Volume of water and alcohol Dependent variable: The weight of the liquid or solid Controls:
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force‚ more commonly known as buoyancy. A solid object’s density determines whether or not the buoyant force of a liquid can lift it. The density of an object depends upon its weight and its size. Given two solid objects that are different sizes‚ but weigh the same‚ the smaller‚ more compact object is the denser of the two. Fluids also have density. When an object is placed in the fluid‚ it pushes aside some of the liquid and‚ if its density is greater than that of the fluid it displaces‚ it will
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concrete) aircrete has a low density and excellent insulation properties. The low density is achieved by the formation of air voids to produce a cellular structure. These voids are typically 1mm – 5mm across and give the material its characteristic appearance. Blocks typically have strengths ranging from 3-9 Nmm-2 (when tested in accordance with BS EN 771-1:2000). Densities range from about 460 to 750 kg m-3; for comparison‚ medium density concrete blocks have a typical density range of 1350-1500 kg m-3
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at the bottom layer. This make sense because the density of water is 1000 kg/m3 is more dense than n-butyl chloride (880 kg/m3) and so we can say that water would be the bottom layer that’s why when water droplets was added in‚ the water dissolved at the bottom layer. Tube number 2 (water and n-butyl bromide)‚ after adding few drops of water‚ the bottom layer form a droplet. This make sense because again‚ density of water is 1000 kg/m3 while density for n-butyl bromide is 1276 kg/m3 so n-butyl got
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In the lab‚ we purposed to find the density of two solid substances with different shapes that was in regular and irregular shapes. We found the mass of the substances by weighting them on a balance. We wanted to make sure that the mass of a substance is correct‚ so we put the substance on a balance 3 times. After that we calculated the average mass of the substance by adding 3 total masses and dividing them by 3.The volumes of the two shapes substances were determined by using a graduated cylinder
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displaced fluid remains valid. The weight of the displaced fluid is directly proportional to the volume of the displaced fluid (if the surrounding fluid is of uniform density). In simple terms‚ the principle states that the buoyancy force on an object is going to be equal to the weight of the fluid displaced by the object‚ or the density of the fluid multiplied by the submerged volume times the gravitational acceleration‚ g. Thus‚ among completely submerged objects with equal masses‚ objects with greater
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Calibration of Volumetric Glassware Nur Farah Nabilah Binti Ahmed Zhaini Muhammad Imanuddin Bin Azman Maisarah Binti Alias Summary In this experiment‚ The purpose of this experiment is to investigate the measurement of the actual volume contents of volumetric glassware. In the beginning of the experiment‚ the volumetric glassware should be clean and dry before used. The volumetric glassware‚ measuring cylinder and pipette should be handled with care and all the precautions
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property have their own advantages and disadvantages as well. This process of expansion by cooling starts when the water temperature nears 4° C. The hydrogen atoms begin to line up into neat rows of six molecules‚ but the water retains the same density‚ except for the slight drop that is common with most matter just before solidification. Once the water temperature has dropped to 0° C‚ the rows of molecules connect at the ends to form an open-ended hexagon. Because of the empty spaces into the middle
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