____________________ ____________________ ____________________ ____________________ Title: Determination of Molecular Weight of a Volatile Liquid By Vaporization: Dumas Method Background of the Study Problem In this experiment‚ an unknown liquid is in need to be identified and one of the key factors to identify it is to determine its molecular weight. In order to determine the molecular weight of a particular substance which in this experiment’s case is a volatile liquid‚ the need to convert the
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Darrell (Chris) Reed 206 Yorktowne Pl Charleston WV 25309 (304) 807-0669 reederbubba@yahoo.com Objective A medical sales position‚ utilizing skill sets developed through extensive studies in the fields of biology and chemistry‚ experience in medical device sales‚ as well as a decade long successful career as a Major League Professional Athlete. Summary Solid relevant medical/biological training and skills Extensive experience working with area cardiologists and vascular surgeons
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through a gel matrix toward a positive pole. Because the molecules have to move through small holes in the lattice bonds in the agarose gel‚ smaller molecules move much faster than larger molecules. Using ultraviolet imaging of the molecules’ movement and a formula that relates molecular weight to the speed of travel through the gel‚ scientists can determine the size of the molecules. Electrophoresis is essentially a sieving process. The larger the fragment of DNA‚ the more easily will it become
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1 The Effect of Molecular Weight on the Rate of Diffusion of Substances1 Alexander Ken Libranza Group 1 Sec. A – 1L March 6‚ 2012 A scientific paper submitted in partial fulfillment of the requirements in General Biology I laboratory under Prof. Cheryl M. Talde‚ 2nd sem.‚ 2011-2012. 1 2 ABSTRACT The effect of molecular weight on the rate of diffusion was assessed using two tests: the glass tube test and the agar-water gel test. In the glass tube set-up‚ two cotton plugs soaked
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Analysis of A. fischeri chDNA restriction digestion by Sal I enzyme after isolation and purification via agarose gel electrophoresis Bio 219-064 (Techniques in Molecular Biology) Group 5: Tung Nguyen‚ Uyen Tran‚ Amber Beckley‚ Danielle Exler Department of Biology‚ Drexel University‚ Philadelphia‚ Pennsylvania 19104 Submitted October 27‚ 2014 ________________________________________________________________________ Abstract Bioluminescence is one of the benefits that a deep sea organism received
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Facing East provides snapshots into American Indian lives‚ actions‚ and thoughts. The first chapter‚ titled "Imaging a Distant World‚" relies heavily on an estimation drawing on actual known facts about initial encounters but filling in the blanks with imagined possible scenarios. The view east begins at Cahokia‚ the metropolis located across the Mississippi River from present-day St. Louis that flourished around 1100 A.D‚ and Richter employs its story to remind "us that the great changes occurring
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Scientific Paper on Diffusion 2 ABSTRACT The effect of molecular weight on the rate of diffusion was assessed using two tests: the glass tube test and the agar-water gel test. In the glass tube set-up‚ two cotton plugs soaked in two different substances (HCl and NH4OH) were inserted into the two ends of the glass tube. The substance with the lighter molecular weight value (NH4OH‚ M = 35.0459 g/mole) diffused at a faster rate (dAve = 25.8cm)‚ resulting in the formation of a white ring around the
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and demonstrate this process in gases b. to cite molecular weight and time as two factors affecting the rate of diffusion c. to formulate a hypothesis on the relationship of each of these factors on the rate of diffusion d. to conduct and experiment to determine the effects of the two factors on the rate of diffusion e. to compute the partial rate and average rate of diffusion f. to conclude on the relationships of molecular weight and time on the rate of diffusion II. Materials:
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Name Period Date Molecular Geometry – Ch. 9 For each of the following molecules‚ draw the Lewis Diagram and tally up the electron pairs. Then‚ identify the correct the molecular shape and bond angle. molecule lewis diagram e- tally shape bond angle 1. SeO3 2. AsH3 3. NO2 - 4. BeF2 molecule lewis diagram e- tally shape bond angle 5. SiH4 6. SeH2 7. PF5 8. SCl6 Name:
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this type of pre-birth sight. This excitement and within the womb sight has been made possible through the advancements of ultrasonography‚ just one of the many radiological modalities. Ultrasonography is define by dictionary.com as “a diagnostic imaging technique utilizing reflected high-frequency sound waves to delineate‚ measure‚ or examine internal body structures or organs.” As the number of ultrasounds being performed‚ by both medical professionals
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