Introduction At any particular wavelength the absorption of light when visible light passes through a solution depends on two factors: * The length of the light path * The concentration of the colored path The connection of these two variables is known as the Beer-Lambert Law: Absorbance (A) = ε c l Where ε is the absorption coefficient C is the concentration of the compound And l is the length of light usually 1cm When I is constant‚ this proves a linear relationship between
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Digestion a. The mouth: salivary alpha enzyme chew food‚ perceive taste‚ moisten food with saliva‚ lubricate food with mucus‚ release starch –digesting (amylase) enzymes‚ initiate swallowing reflex - Enzyme: alpha amylase with cooked starch as substrate – starch digestion enzyme an enzyme that catalyses the breakdown of starch into sugar - The Functions of Saliva - 1. Moistens and lubricates food‚ permitting swallowing 2. Holds taste producing substances in solution and bring them in
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Electron Spin Nuclear Magnetic Resonance (NMR) Spectroscopy Organic Chemistry BCH3015 • Electron spin is quantized. • The spin quantum number ms has only two allowed values: ms = +½ or –½ • The two directions of spin create oppositely spin create oppositely directed magnetic fields. fields. 61 Proton Spin Organic Chemistry BCH3015 62 Nuclear Spin States • A proton (the nucleus of a 1H atom) also possesses spin. For each nucleus having the spin quantum number
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Contents Series Preface Preface Acronyms‚ Abbreviations and Symbols About the Author 1 Introduction Electromagnetic Radiation Infrared Absorptions Normal Modes of Vibration Complicating Factors 1.4.1 Overtone and Combination Bands 1.4.2 Fermi Resonance 1.4.3 Coupling 1.4.4 Vibration–Rotation Bands References 2 Experimental Methods 2.1 Introduction 2.2 Dispersive Infrared Spectrometers 2.3 Fourier-Transform Infrared Spectrometers 2.3.1 Michelson Interferometers 2.3.2 Sources and Detectors 2.3.3
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Absorption Costing -Overview 1. Overview of Absorption costing and Variable Costing 2. Review how costs for Manufacturing are transferred to the product 3. Job Order Vs. Process Costing 4. Overhead Application -Under applied Overhead -Over applied overhead 5. Problems with Absorption Costing 6. Concluding Comments Absorption Costing The focus of this class is on how to allocate manufacturing costs to the product. -Direct Materials -Direct Labor -Overhead Absorption
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Mass Spectroscopy Mass spectroscopy is a method used in science and industry in order to obtain the masses and relative concentrations of atoms and molecules and to detect isotopes in a sample based on their masses. In order to do this the method requires an instrument called the ‘mass spectrometer’‚ of which‚ is able extract accurate information of the relative masses of isotopes and their relative abundance. This makes the mass spectrometer very useful for applications such as carbon dating
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Djenane Charles First Year Experience Dr. Andrea Lewis September 26‚ 2012 Dr. Johnnella E. Butler’s speech on liberal arts education and becoming a global citizen opened my mind to all the responsibilities I obtained after choosing to attend Spelman College. I have set a few goals for myself that I intend on completing and improving throughout my four years. These goals consist of time management‚ striving for all A’s‚ staying on top of my assignments and becoming a freethinking women. Throughout
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Absorption costing: * It is costing system which treats all manufacturing costs including both the fixed and variable costs as product costs * In absorption costing‚ all costs are absorbed into production and thus operating statements do not distinguish between fixed and variable costs. * Absorption costing is a process of tracing the variable costs of production and the fixed costs of production to the product. Absorption costing is used to cost products and to report financial
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A removal process consisting of absorption‚ desorption‚ heat exchangers and auxiliary equipment is shown in Figure 10. Absorption is traditionally performed in a column with plates‚ random packing or structured packing. CO2 containing gas flows upwards and the absorption liquid flows downwards. The solvent (rich amine) is pumped further through a heat exchanger to a separation column. The absorbed CO2 is regenerated in a separation (stripper) column. Heat is added to the reboiler and a condenser
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sharper peaks and troughs in serum concentrations. The rate of dissolution is described by the Noyes–Whitney equation as shown below: \frac{dW}{dt} = \frac{DA(C_{s}-C)}{L} Where: \frac{dW}{dt} is the rate of dissolution. A is the surface area of the solid. C is the concentration of the solid in the bulk dissolution medium. C_{s} is the concentration of the solid in the diffusion layer surrounding the solid. D is the diffusion coefficient. L is the diffusion layer thickness. As can be inferred
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