Lab #3 Separating Metal Cations by Paper Chromatography Introduction/Purpose: In chemistry‚ it is important to effectively analyze the components in a given mixture. In order to do so‚ chemists will analyze a mixture either qualitatively or quantitatively using different methods and equipment. Qualitative analyses are subjective‚ and only gather “non-numerical” data such as the color‚ appearance‚ and smell of the components. This data
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Lab 3 – Separation of a Mixture of Solids Cathy Lab Partners: Chelsea Brooke Sept 4‚ 2012 Chemistry 131A Dr. Vicki H Audia Pelab Questions: Proposed procedure for separation of a mixture: Use physical properties of the 4 substances to separate. 1. Remove iron with magnet 2. Add water to the mixture to melt the benzoic acid and NaCl then filter out sand. 3. Chill the solution and scoop the acid out leaving a salt solution. 4. Boil water away leaving salt. Purpose: The
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Abstract: Experiment 55 consists of devising a separation and purification scheme for a three component mixture. The overall objective is to isolate in pure form two of the three compounds. This was done using extraction‚ solubility‚ crystallization and vacuum filtration. The experiment was carried out two times‚ both of which were successful. Background Information: This experiment combined all the knowledge of the previous labs performed throughout the semester. An unknown mixture containing
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Cody Carter 2/22/12 Comm. 200 Short Paper 2 Breaking Down Identity When studying communication‚ seeing examples is often a strong way to learn concepts. In Hollywood entertainment it is hard to have a good story with out a good-sized problem‚ and more often than not communication issues contribute to problems. This is why watching video clips‚ short films‚ and feature films can help students learn concepts of communication. In my term paper I will critically analyze the intercultural communication
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SEPARATION‚ DIVORCE & ANNULMENT Introduction When two people are in a relationship they are usually in it forever. Unfortunately‚ it isn’t always the case and as you will learn in this unit‚ there are many things that could potentially be blamed for the breakdown of such relationships. This topic takes you into the world of divorce which is never an easy thing for any couple and if there are children involved (and there usually are); it makes the experience even worse. Some couples split
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Solubility as a Property of Matter A Lab of Chemicals‚ Chromatography‚ and Crime! Chemistry is a natural science that deals with the composition of matter and the changes it undergoes. At crime scenes‚ investigators often find unknown materials that need to be identified. If an unknown material is a mixture‚ an investigator may want to know one or two things about it: What are the ingredients of the mixture? Is the mixture found at the scene the same as a known mixture? A mixture is a collection
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The Separation of Church and State Aaron Henson PS1355 2/7/2015 Throughout history‚ this topic has generated much of controversy. Ancient history is full of examples of the state or governing authorities interfering with religion. There were rulers or kings that assumed various “priestly” titles‚ like the “temporal” titles that their offices command. An example of such state-church mixing and melding‚ led to the execution of Socrates‚ for his disrespect for the gods( in Biblical times
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Mixture separation Lab I am one of the chemists assigned to design a cost effective procedure for handling the CARBOSE separation and recovery and hazardous waste disposal. The difficulties were trying to figure out is how we can effectively separate Carbose‚ sand‚ and naphthalene? The hypothesis we chose to solve this problem was if we put the mixture into water‚ alcohol‚ and mineral spirts‚ then in each solution one or more substance will not dissolve‚ will be visible‚ and also able to separate
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Chemistry 266 Dominick Armstrong 10/10/2012 Acid-Base Titration Introduction Acid and bases are two important classes of compounds that react to form a salt and water. When mixing acids and bases a precise amount of the base must be added in order to reach the equivalence point. At this point‚ one reactant has been exactly consumed by the addition of the other reactant. When performing chemical reactions chemist use a process called titration to determine the equivalence point of the
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Hadar‚ also known as Beta Centauri‚ is the 10th brightest stars (11th as viewed from Earth). Hadar is a blue-white super giant in the constellation Centaurus (Cen). In about 4‚000 years‚ the motion of Alpha Centauri‚ who’s proper name is Rigel Kentaurus‚ will carry it close enough to Hadar that they will appear to be a magnificent double star. Because of the distance away from Earth that Alpha and Beta Centauri are (approximately 90 parsecs)‚ they will be an optical double. As they sit today‚ the
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