EX1_what_you_should_know - Exam 1 Concepts! CH110 FA10 SAS...

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CH110 FA10 SAS 2 Exam 1 Concepts
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CH110 FA10 SAS 3 Units and Basic Dimensional Algebra • How do I manipulate exponents? • How do I perform metric conversions? • What are significant figures? Energy and State Functions • What is the First Law of Thermodynamics? • What is meant by “system” and “surroundings”? • What is the difference between an endothermic or exothermic process? • What is a State Function? • What is the meaning of Internal Energy and what is it composed of? • What is the meaning of Enthalpy?
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CH110 FA10 SAS 4 Introduction to Atomic Structure • Approximate size of an atom • Atomic components (ions or neutral; how many p, e, n; what is atomic number?) • Isotopes (atomic number stays the same; how many p, e, n) • Average Atomic Masses (how to calculate) • Avogadro’s number (memorize) • What is molecular weight? Calculate MW for a molecule Electromagnetism and Line Spectra • What is the range ( λ ) of visible light? • Rank the following types of light in order of increasing λ : uv, ir, visible, microwave • What is relationship between the wavelength and frequency of light? • Rank the following types of light in order of increasing ν : uv, ir, visible, microwave
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CH110 FA10 SAS 5 Properties of Electromagnetic Radiation: 1. What is spectroscopy? A continuous spectrum? A line spectrum? 2. What is the relationship of wavelength to frequency? Of E to λ ? Of E to ν ? 3. What are the types of EMR? The relative order of wavelength? The relative order of colors and range of wavelength in the visible spectrum? 4. What are the conversion rules for the various units we have discussed? 5. What wavelengths have higher frequency? Higher energy? Particle Behavior of Light: 1. Calculate the energy of a photon or mole of photons. 2. Can you calculate E b of an electron? 3. What is a “quantum”?
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CH110 FA10 SAS 6 Bohr Model of the Hydrogen Atom 1. How does Bohr describe an atom? 2. Calculate the energy of the electron in an orbit. 3. Is the atom absorbing or emitting light when an electron changes orbit? 4. Calculate the energy needed to cause a transition in the Bohr atom ( Δ E). 5. What is the sign of
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This note was uploaded on 07/16/2011 for the course CHEM 110 taught by Professor Hofmann,brucerob during the Spring '08 term at Pennsylvania State University, University Park.

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EX1_what_you_should_know - Exam 1 Concepts! CH110 FA10 SAS...

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