CHEM101 Lecture Notes - Lecture 3: Gas-Filled Tube, Classical Mechanics, Matter Wave

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cerisegnat909

22 Sep 2018

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University of Alberta

Department

Chemistry

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CHEM101

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Ran Zhao

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CHEM101 Lecture Notes - Lecture 2: Electromagnetic Radiation, Classical Mechanics, Refraction

CHEM101 Lecture Notes - Lecture 3: Gas-Filled Tube, Classical Mechanics, Matter Wave

CHEM101 Lecture Notes - Lecture 4: Atomic Orbital, Bohr Model, Electron Configuration

Document Summary

2. 178 10-18 j: z = nuclear charge = # protons. Elements must be in hydrogen like environment meaning 1 electron (he+ z=2, Li2+ z=3: n = quantum number, calculate the energy of e- in h at the ground state: " = 2. 178 10123 2: = 2. 178 10123 j. Answer is negative because the atoms energy only reaches zero (e=0) when n= , when n is a small number answer is less than 0. "abaecd: for hydrogen transition from ni = 5 to nf =2. This is different than finding the electron energy at a given quantum number as we are looking for the energy difference, so infinity does not turn the answer to 0. Matter and energy are alternative forms of the same entity : einstein: energy has mass, de broglie stated that matter behaves as though it moves in a wave in 1924.

Related Questions

provided to determine AH rxn for the following reaction: urf (klimol) CH4(g) + 3 Cl2(g) â CHCI3() + 3 HCI(g) airrxn-? A)-151 kJ B)33SkJ C) +662kJ D) +117kJ E)-217 kJ A) 4.1 atm B) 5.0 atm c) 6.4 atm D)1.1 atm E) 2.3 atm kg) of the copper sample if the specific heat capacity of copper is 0 CH4(g) 75 CHCI3() -134 HCI(g) -92 8) What pressure will 14.0 g of CO exert in a 3.5 L container at 75 C? 9) A sample of copper absorbs 43.6 kJ of heat, resulting in a temperature rise of 50.0Â°C, determine the mass (in .385 J/g C A) 226 kg B) 0.235 kg C)6.64 kg D) 119kg E)5.10 kg 10) Which of the following processes is exothermic? A) the ionization of a melting snow atom B) the breaking of a boiling of water bond C) the boiling of water D) the condensation of water E) All of the above processes are exothermic 11) Calculate the energy of the red light emitted by a neon atom with a wavelength of 703.2 nm. B)4.27 x 10-19J C) 2.34 x 10-19J D)6.45 x 10-19J E) 2.83 x 10-19J A)3.54 Ã 10-19J 12) Identify the color of a flame test for potassium D) yellow A) violet B) red C) white E) blue 13) Which of the following statements is TRUE? A) The emission spectrum of a particular element is always the same and can be used to identify the element. B) Part of the Bohr model proposed that electrons in the hydrogen atom are located in "stationary states" or particular orbits around the nucleus. C) The uncertainty principle states that we can never know both the exact location and speed of an electron. D) An orbital is the volume in which we are most likely to find an electron. E) All of the above are true. 14) Calculate the wavelength of an electron (m-9.11 x 10-28 g) moving at 3.66 Ã 106 m/s. A)1.99 x 10-10m B)5.03 x 10-10 m C) 1.81Ã10-10 m D)5.52 Ã 10-9 m E) 2.76 Ã 10-9 m 15) Which of the following quantum numbers describes the shape of an orbital? A) principal quantum number B) magnetic quantum number C) spin quantum number D) SchrÃ¶dinger quantum number E) angular momentum quantum number 16) Determine the energy change associated with the transition from n = 2 to n-5 in the hydrogen atom. A)-218Ã10-19J B)+654 Ã 10-19 J C) +4.58 x 10-19 J D)-1.53 x 10-19 J E) +3.76 Ã 10-19J 17) If two electrons in the same atom have the same value of I, they are A) in the same sublevel, but not necessarily in the same level. me level, but different sublevel. C) in the same orbital. D) in different levels and in different shaped orbitals. E) none of the above.

CHEM101 Lecture Notes - Lecture 3: Gas-Filled Tube, Classical Mechanics, Matter Wave

CHEM101 Lecture Notes - Lecture 2: Electromagnetic Radiation, Classical Mechanics, Refraction

CHEM101 Lecture Notes - Lecture 3: Gas-Filled Tube, Classical Mechanics, Matter Wave

CHEM101 Lecture Notes - Lecture 4: Atomic Orbital, Bohr Model, Electron Configuration

Document Summary

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