'Energy level diagram' diaporamas de présentation

If you are missing a notebook, come find it on the front desk. Extra help: Tuesdays 8:15-9:00 pm

If you are missing a notebook, come find it on the front desk. Extra help: Tuesdays 8:15-9:00 pm Thursdays 7:00-8:00 pm Chem is try!!. Atomic Emission Spectra. Read p. 54-59. What is light?. White light: reflection of all colors Black light: absorption of all colors

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Atomic Emission Spectra

Atomic Emission Spectra. Zumdahl 2 : p. 290-299. Atoms. Let go. A range. What is light?. White light: reflection of all colors Black light: absorption of all colors Colors are each a different wavelength (?: lamda) of light. Colors

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Electronic Absorption Spectroscopy of Organic Compounds

Electronic Absorption Spectroscopy of Organic Compounds. W. R. Murphy, Jr. Department of Chemistry and Biochemistry Seton Hall University. Course Topics. UV absorption spectroscopy Basic absorption theory Experimental concerns Chromophores Spectral interpretation Chiroptic Spectroscopy

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Chapter 41

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October 11,2013

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Chapter 28

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Quantum Theory

Quantum Theory. Classical physics failed to explain certain events which led to the development of the field known as quantum mechanics. Explains particle behavior at the microscopic level These effects of this particle behavior is easily observed

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Vibrational Motion

Vibrational Motion. Harmonic motion occurs when a particle experiences a restoring force that is proportional to its displacement. F=-kx Where k is the force constant. The stiffer the spring, the greater the value of k . Force is also the gradient of the potential energy V .

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Chapter 38

Chapter 38. The work function of metal A is 3.0 eV. Metals B and C have work functions of 4.0 eV and 5.0 eV, respectively. Ultraviolet light shines on all three metals, creating photoelectrons. Rank in order, from largest to smallest, the stopping voltages for A, B, and C.

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Monochromatic Plane-polarized radiation

Monochromatic Plane-polarized radiation. Light through different mediums. The Electromagnetic Spectrum. Spectroscopic Methods. Superposition - interference. Superposition resulting in a beat pattern. sine waves to square waves. Waves through a slit. More on diffraction. Refraction.

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Atomic Spectra and Electron Orbitals

Atomic Spectra and Electron Orbitals. The Classical Atom. Electrons orbited the nucleus. Problem!! Accelerating charges emit radiation (energy) With less energy the electron orbitals should shrink and the electrons should spiral into the nucleus. The Bohr Atom.

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Matter and Particles of Light: Quantum Theory

Matter and Particles of Light: Quantum Theory. Light (energy) and matter in motion behave both as waves and particles Wave-Particle Duality - Quantum Theory Particles of light are called photons: E = hf = hc/ l

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Section 4 d

Section 4 d. Breaking and making bonds. Bond energies. The table below shows the amount of energy needed to break the bond and the amount of energy released when that bond is made. s ample calculation. CH 4 ( g ) + 2O 2 ( g ) ? CO 2 ( g ) + 2H 2 O ( g )

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Sum: 2C 6 H 14 (l) + 19O 2 ? 12CO 2 + 14H 2 O(g) D H o = - 2 D H f o C6H14 + 1 2 D H f o CO2 + 14 D H f o H2O

2. Energy Level Diagram. Elements: 12C(s), 14H 2 (g), 19O 2 (g). 0. D H f o kJ. Reactants : 2C 6 H 14 (l). 2 D H f o C 6 H 14 -334. S n D H f o (react) = -334. Products : 14H 2 O(g). Net D -7782 or -3891 kJ/mol. 14 D H f o H2O -3388. 1. Using Formula.

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