Singapore Polytechnic School of Chemical and Life Sciences Basic Mathematics [MS2125] Active Learning Assignment Part I Submitted by: Yap Xin Yi (1416237) Yjasmin Yvette Morales Naquila (1452129) DCHE/FT/1A/06 Date of submission: 18 July 2014 Q1. Fill in the table below: (The table below is to help you in your brain-storming; you do not need to be specific or accurate at this stage‚ but try to think divergently.) (5 marks) What do we know about this problem? (i.e. what information is
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COLUMN AND THIN LAYER CHROMATOGRAPHY Mark Paul P. Pastrana‚ Mariah Ericka M. Patawaran‚ Princess Juneire M. Peligro‚ Francisco Q. Pua III‚ Rose Anne L. Quyo and Janille P. Ragpa Group 8 2B Medical Technology Organic Chemistry Laboratory ABSTRACT The main objectives were to separate the colored components of malunggay leaves by means of column chromatography‚ as well as to determine the purity of the components using thin layer chromatography (TLC) and measure the Rf values of the colored
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= mole fraction liquid and y = mole fraction vapor on the horizontal axis. At a temperature of 114 oC what is the composition of the liquid according to this plot? 8. Examine Figure 5.38. Assume the boiling point for pure B is 120oC‚ for the azeotrope is 135oC‚ and for pure A is 80oC. Assume the azeotropic composition is 0.50 mole fraction A. (a) Draw a rough graph of temperature versus volume of liquid collected for a distillation starting with 100 mL of liquid having composition
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Part I: Lab Insert completed data tables for each part of the lab. Be sure that the data tables are organized and include units when necessary. Conductivity (4 points Solid Liquid Aqueous Solution Substance A Conductive No Yes Yes Substance B Conductive Yes No No Substance C Conductive No Yes Yes Substance D Conductive Yes No No Part II: Conclusion Answer the following questions in your own words‚ using complete sentences. Based on your observations in the lab
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0 C and some molecules at 100 C for a brief period of time. This explains why wet stuff at room temperature (25 C) can dry out: over time‚ some of the molecules reach a temperature sufficient to "break free" from the liquid‚ becoming a gas. This isn’t limited to liquids either! Even ice in your fridge will lose molecules‚ leading to the puzzling "shrinking ice cube" effect and the ever popular "freezer burn" where $10 sirloin steaks are reduced to dried out slabs of meat. Now‚ I’ll answer
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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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from the stove. Strain the mixture through a strainer. Discard the skins and put the liquid in a clean container. 5)Cover the container and keep it in the refrigerator. For our lye 1. Get the ingredients and equipments ready: You would need the following things to try your hand at making lye: two plastic buckets (a small one and a large one ? The small one should fit into the large one in such a way that liquid from the small one drips slowly into the large one); some fresh ash from burning hard
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Kayla Adkins Forensic Chemistry Exam 2 I have been honest and observed no dishonesty. 1. In specific detail‚ describe a published procedure for the definitive identification of Heroin utilizing gas chromatography-mass spectroscopy (GCMS). Heroin is a white crystalline powder with no odor and a bitter taste. It is a derivative of morphine in that the –OH (hydroxyl group) is replaced by an acetyl group‚ -OCOCH3 and has a molecular formula is C21H23NO5 with a molecular weight of 369.42
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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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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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