4 3 hr (Lecture) 3 hr (Practical) 3 Core CHM 456 Part Course Status Pre-requisite : : : Course Outcomes : Upon completion of this course‚ students should be able to: 1. Determine functional groups present in organic compounds using Infrared Spectroscopy and interpret Nuclear Magnetic Resonance spectra and relate the information to structural features of organic compounds. State and explain principles governing the physical and chemical properties of aldehydes‚ ketones‚ carboxylic acid
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as well as verification of the chemical structure. NMR spectroscopy is well suited for wood characterization‚ both in solution and in the solid-state. Sample Number # 40 Sample 40 has been provided with sample information stating; an Infrared reading of 3350 / 1040 cm-1‚ a boiling point ranging between +107⁰C and +109⁰C‚ Figure 1: Sample spectrum Parameters: Frequency = 100MHz Accumulation = 20 Because there is a need to report the location of an NMR signal/peak in a spectrum
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The Big Bang Theory What is the Big Bang Theory? The Big Bang is the dominant (and highly supported) theory of the origin of the universe. In essence‚ this theory states that the universe began from an initial point or singularity which has expanded over billions of years to form the universe as we now know it. In 1959 a survey was conducted of scientists across America concerning their understanding of the physical sciences. One particular question asked “What is your concept of the age of
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. Physics Module Form 5 chapter 1 : Waves GCKL 2011 1.1 U N D E R S T A N D I N G W A V E S What is meant by a wavefront State the direction of propagation of waves in relation to wavefronts What is transverse wave? An imaginary line that joins all the points on the crest of a wave. The direction of propagation of a wave is perpendicular to its wavefront. A transverse wave is a wave in which particles of the medium oscillate in the direction of the propagation of the waves. Water
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HISTORY OF ASTRONOMY Astronomy is the oldest of the natural sciences‚ dating back to antiquity‚ with its origins in the religious‚ mythological‚ and astrological practices of pre-history: vestiges of these are still found in astrology‚ a discipline long interwoven with public and governmental astronomy‚ and not completely disentangled from it until a few centuries ago in the Western World . In some cultures astronomical data was used for astrological prognostication. Ancient astronomers were able
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it a hygienic advantage over other biometric authentication technologies. The palm secure works by capturing a person’s vein pattern image while radiating it with near-infrared rays. The PalmSecure detects the structure of the pattern of veins on the palm of the human hand with the utmost precision. The sensor emits a near-infrared beam towards the palm of the hand and the blood flowing through these back to the heart with reduced oxygen absorbs this radiation‚ causing the veins to appear as a black
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and torsion Quantum million times lower than X-rays(ionizing radiation=damage) Radio astronomy 30ghz – 1Thz Infrared(IR)- “infra” – below‚ Region of spectrum‚ Below the visible red. Used: Tracking‚ Night vision‚ remote controls FarInfrared(FIR) – LF portion of IR‚ waves are thermal‚ penetrates skin cells NearInfrared – Short wave lengths (TV’s Remote Control) Quantum Energy of infrared photons range 0.001 to 1.7 eV Quantum States: Molecular Vibrations -absorbed more than microwaves‚ less visible
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yield % of the synthesized polymer was calculated by the equation: Yield %= (Weight of synthesized polymer)/(Weight of the monomers taken) ×100 Characterization of synthesized polymer: Chemical analysis using Fourier transform infrared Spectroscopy: Fourier transform infrared (FTIR) spectrum of monomers and synthesized PLGC was obtained in the range of 4000-400 cm-1 using at least 40 scans at a resolution of 4 cm-1. The monomer L-lactide and glycolide spectrum was recorded using
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product. You will also need to inform customers of the dangers of our waves. Task: You must design a catalog that will persuade the customers of Waves-R-Us to buy your products. Your catalog must have 1 page for each wave (radio waves‚ microwaves‚ infrared rays‚ visible light‚ ultraviolet rays‚ X-rays‚ and gamma rays). You should include the benefits of the particular wave as well as a picture that relates‚ Do not forget to include the risks of it in fine print. Your catalog should also have an introductory
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flows between space‚ the atmosphere‚ and Earth’s surface. Energy exchanges are expressed in watts per square meter (W/m2). A greenhouse gas (sometimes abbreviated GHG) is a gas in an atmosphere that absorbs and emits radiation within the thermal infrared range. This process is the fundamental cause of the greenhouse effect.[1] The primary greenhouse gases in the Earth’s atmosphere are water vapor‚ carbon dioxide‚ methane‚ nitrous oxide‚ and ozone. In the Solar System‚ the atmospheres of Venus‚ Mars
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