"Molecular geometry" Essays and Research Papers

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    Conic Section

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    and ellipse. The circle is sometimes categorized as a type of ellipse. In mathematics‚ a conic section (or just conic) is a curve obtained as the intersection of a cone (more precisely‚ a right circular conical surface) with a plane. In analytic geometry‚ a conic may be defined as a plane algebraic curve of degree 2. There are a number of other geometric definitions possible. One of the most useful‚ in that it involves only the plane‚ is that a conic consists of those points whose distances to some

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    Diffusion and Osmosis

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    The Effects of Osmosis and Diffusion The experimentation of last week’s lab was in order to test the many effects of diffusion and osmosis amongst four experiments. One such experiment was testing the effects of molecular weight on diffusion in relation to the use of Agar. The methods performed included the use of two acids‚ HCl and acetic acid. Both acids were placed into an Agar-filled dish and‚ over increments of 15 minutes‚ data collection was taken based off the diffusion rate and the

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    Reaction Paper

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    above yields four pairs of corresponding angles. Parallel Postulate Given a line and a point not on that line‚ there exists a unique line through the point parallel to the given line. The parallel postulate is what sets Euclidean geometry apart from non-Euclidean geometry.

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    done over simple diffusion‚ facilitated diffusion‚ osmosis‚ filtration‚ and active transport by changing and observing different variables and how they affect transport through the membrane. Obtained was the understanding of the changing of the molecular weight cut off in a membrane‚ and how it does not play a part directly in changing the rate of diffusion‚ but instead determined if diffusion was accomplishable at all. Knowledge on the size of molecules in relation to how they behave through these

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    Maths Notes Maths Notes for Shear and Stretch Stretch • The transformation consists of:o o • The invariant line Scale factor For stretch‚ the transformation takes place perpendicular to the invariant line. • Scale factor(K) = 4 3 2 1 -2 -1 0 -1 -2 -3 1 2 3 = Y 4 X Invariant line In the above example‚ the x-axis is the invariant line and the object lies on (1‚1). Thus‚ =1 The scale factor is given to us as K = 3 1 Maths Notes Thus‚ acc. to the formula given

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    Anatomy and Physiology 1

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    opposite sides of a membrane. Cells have been know to explode as a result of this effect. Wikipedia.org‚ "The World’s Encyclopedia" really says it best Search ’Molecular diffusion" "Molecular diffusion‚ often called simply diffusion‚ is a net transport of molecules from a region of higher concentration to one of lower concentration by random molecular motion. The result of diffusion is a gradual mixing of material. In a phase with uniform temperature‚ absent external net forces acting on the particles‚

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    http://hyperphysics.phy-astr.gsu.edu/hbase/biology/celmem.html Osmosis • Example: A semipermeable membrane bag containing a 30% sugar solution is placed in a beaker of pure water. – Diffusion or osmosis? – What should we expect to see? • Direction of molecular movement Photo Courtesy Of: https://internationalgcsebiology.wikispaces.com/Movement+in+and+out+of+cells • Example: The cell membrane of a nerve cell keeps 14 times as much sodium outside as

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    Math Autobiography

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    As some of my peers might know‚ geometry is definitely not my favorite subject in math. I have always struggled with geometry‚ especially with memorizing formulas to solve problems such as finding volume‚ surface area and more. I always found formulas to be such a bother and even after learning one and mastering it somewhat‚ I usually ended up forgetting the formula. Fortunately‚ the formulas that I had the most trouble with‚ being volume‚ surface area‚ and area‚ have finally began to stick with

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    Dumas Method

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    Introduction In order to identify new materials‚ scientists use a variety of chemical and physical methods to determine molecular masses. One of these methods includes the Dumas method for determining the molecular weight of a volatile liquid. This method‚ which was proposed by John Dumas in 1826‚ makes use of a volatile liquid (vaporizes at a relatively low temperature) and allows this liquid to be heated in a water bath to a known temperature and escape from a flask through a tiny opening (Giunta

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    the purification and size determination of various proteins and DNA fragments. In order to do this‚ a polyacrylamide gel will be prepared and placed in a buffer-containing gel electrophoresis apparatus. Next‚ an aliquot of acid phosphatase and a molecular weight marker (Composed of Phosphorylase B‚ bovine serum albumin‚ ovalbumin‚ and carbonic anhydrase) will be placed into separate wells within the gel‚ and the apparatus will be connected to a constant voltage source (175 V) for an allotted period

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