and the absorbance was recorded every 5 seconds for 360 seconds. For the second part of the experiment‚ the same calibration steps were repeated and then‚ 2.0 mL of the 0.2 M NaOH and 2.0 mL of the 0.2 M NaCl were added to a small test tube. After this step‚ 1 drop of phenolphthalein was added and inverted several times to mix. With the Spec-20 set to absorbance mode‚ the test tube was quickly placed into the sample holder and the absorbance was recorded every 5 seconds for 360 seconds. After each
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Glance Watch operates its company including three domestic markets in the Merica region‚ and one foreign market in Pandau. The company runs business based on consumer interaction and product development research such as economic‚ political‚ social environment‚ life style and technology innovation. In Merica‚ there are no limits imposed on monetary exchange or the entry of foreign funds into the country. The government encourages incentives to attract investors to their area such as tax break‚ direct
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Once the juice arrived in the boiling house‚ it was contained in clarifying vats and lime was added. It was then boiled in cast iron "coppers" of diminishing size. The furiously hot liquid would be skimmed and ladled into the next smaller copper until it reached just the right consistency and was diverted to a wooden trough leading to wooden flats where it was allowed to cool. The slaves who mastered the boiling stage of the refining process were some of the most highly valued workers on a plantation
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This experiment is conducted to determine the liquid permeability of porous media. The apparatus used in the experiment is the liquid permeameter. The liquid used in this experiment is water. Three membrane samples of different thickness (0.1‚ 0.2‚ 0.3 cm) are used as the porous media. The determination of the permeability is carried out using elevated pressure test. Each sample is tested for 5 times at different values of pressure gradient which are 5‚ 10‚ 15‚ 20 and 30 psi. In order to obtain more
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Determination of Cleansing Action of Detergents (Using Capillary rise) Synopsis This project report explains about the surface tension and capillarity of liquid through a simple experiment of finding the capillarity of various detergents. Oil stains and grease on dirty clothes cannot be removed‚ using water alone‚ because water does not wet them. If detergents added ‚ surface tension is decreased‚ the area of contact is increased
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Distillation is a process in which compounds that are in the same solution become separated by their boiling points. For this to occur‚ a heterogeneous mixture has to be placed into a distiller‚ in this experiment a solution of 1:1 water and methanol was distilled. When distilling substances there are various methods of distillation that can be used. In this lab‚ simple and fractional distillation was used. The simple distiller is composed of a 100ml round bottom flask that is attached to: a
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Question 1 (5 points) 1. Which of the following may lead to vertical integration? a) Technological interdependencies b) Reduced search and bargaining cost c) The hold-up problem d) All of the above Question 2 (5 points) Effective collusion generally is more difficult when a) the number of oligopolistic firms involved decreases b) the number of oligopolistic firms involved increases c) when customer orders are small‚ frequent‚ and received on a regular basis as compared
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Anyone on a clear liquid diet is doing that due to medical procedures such as surgery‚ having the flu‚ or sometimes other stomach disorders until they can go on solids again. The clear liquid diet is only that: foods that will go down easily and don’t require a lot of digesting. The clear liquid diet helps the person on it to stay hydrated enough for the body to function‚ and also provides you with electrolytes that are needed as well. This type of a diet is usually for the shorter term until whatever
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Aleena Joseph‚ Melting Away‚ 2017‚ Oil on canvas‚ 16 x 20 inches It is common knowledge that the world has been changing and over time‚ it will come to an end and that the reason for those changes is humans. It is due to the excessive amounts of harmful human activities that the world is almost melting away. Global issues such as climate change or global warming may sound unrealistic‚ however‚ the events occurring around the world proves that these issues are real indeed. Just as an example‚ London
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Partner: Camille Dupiton Lab #1 Purification of a Solid: Crystallization and Melting Point Section: A61 Laboratory Exercise #1 Purification of a Solid: Crystallization and Melting Point Introduction In this lab exercise‚ we will be learning experimental techniques using glassware and other apparatuses. In order to successfully complete this lab‚ we will use techniques 1.0‚ 1.1‚1.2‚2.0‚2.1‚2.2‚ and 2.3 that are described in the Lab Manuel. In addition‚ we will
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