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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water. Emulsion is a mixture of two nonsoluble liquids that one liquid into other‚ in the form of drops. There are two kinds of emulsion: oil in water and water in oil while depends on whether the continuous phase is the water or oil. Mayonnaise is an example of oil in water emulsion consists egg yolk and oil that formed a stable emulsion by adding oil into egg yolk slowly and whisking it. The chemical makes emulsion stable is emulsifier‚ it helps two liquids come together and stay together: oil-loving
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Lab Report Experiment 1 & 2 CHM-101 Amele Takpara Partner: Jessamyn Dupree ------------------------------------------------- Experiment 1 ------------------------------------------------- (Pre-Lab Questions) 1. In the design of a Bunsen burner‚ explain the purpose of a. the gas control valve The gas control valve regulates the rate at which methane enters the burner. b. and the air vents. The air vents control the rate at which air enters the burner 2. Why is a luminous
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Separation of the Components of a Mixture General Chemistry 1 (Chem 101)‚ ISP SCUHS Report 2 January 26‚ 2014 Abstract The analyses of mixture were to distinguish and identify homogeneous mixture by using the techniques of decantation and sublimation. By performing these techniques‚ we examined our solutions such as SiO2 (sand)‚ NH4Cl (ammonium chloride)‚ and NaCl (sodium chloride) and mixed H2O (water) with each solution after being heated. After examining our solutions‚ we made calculations
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Under armour is sports performance apparel make athletes stronger‚ faster and better * Soft‚ lightweight‚ stretch-blended spun poly in a generous‚ fashionable cut. Cotton just can’t compare. * UA Tech® HeatGear® fabric wicks sweat away from your skin to help you stay cool‚ light‚ and comfortable * Armour®Stretch accelerates dry time and improves mobility with built in 4-way stretch. * Anti-Odor technology—anti-microbial treatment prevents the growth of odor-causing bacteria.
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aqueous caustic solution containing UOP’s proprietary liquid catalyst. The caustic solution reacts with mercaptans(RSH) and extracts them. The reaction that takes place in the extractor is: 2RSH + 2 NaOH → 2NaSR + 2 H2O The second step is referred to as regeneration and it involves heating and oxidizing of the caustic solution leaving the extractor. The oxidations results in converting the extracted mercaptans to organic disulfides (RSSR) which are liquids that are water-insoluble and are then separated
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Sulfate (MgSO4) was added and created about 40 plates. King’s B Medium was made using the same procedure as the King’s B Agar with the exception of adding 20g of agar. These recipes were referred to later in the protocol to create additional plates and liquid cultures when growing multiple strains. King’s B Agar and Medium served as enrichment media that enhance growth
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measured using a triple beam balance. Units used to measure it are grams‚ metric tons ‚ milligrams ‚ and kilograms . Volume is the amount of space enclosed by a shape or object‚ how much 3-dimensional space it occupies. It can be occupied by a solid‚ liquid or gas. The volume can be measured in cubic meters‚ cubic centimeters‚ or liters. Sometime around 250 BCE‚ the Greek mathematician Archimedes was given the task of determining whether a craftsman had defrauded the King of Syracuse by replacing
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Abstract: This experiment consisted of the separation of sodium chloride and silica. The mixture was separated by extracting the sodium chloride with water and drying both substances. Adding water to the mixture‚ stirring‚ then decanting the resulting liquid twice extracts the dissolved sodium chloride from the silica. Heating both sodium chloride and silica separately provides the mass of each. The data from this experiment can be used to calculate the percent composition of sodium chloride and silica
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25*100/1 = 25% error for the 5 mL pipet = 0.25*100/5 = 5% error for the 10 mL pipet = 0.25*100/10 = 2.5% 2. It is important to make certain that there is no air bubble in the tip of the buret below the stopcock before the initial reading of the liquid level in the buret is taken. If a 0.5-mL air bubble is present in the tip of a buret‚ what percent error in 10-mL‚ 20-mL‚ and 40-mL samples will result if the air bubble is dislodged
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