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Get Full Access to Chemistry: A Molecular Approach - 3 Edition - Chapter 3 - Problem 17
Get Full Access to Chemistry: A Molecular Approach - 3 Edition - Chapter 3 - Problem 17

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# How can a molecular formula be obtained from an empirical formula What additional ISBN: 9780321809247 1

## Solution for problem 17 Chapter 3

Chemistry: A Molecular Approach | 3rd Edition

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Problem 17

How can a molecular formula be obtained from an empirical formula? What additional information is required?

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CH 111 Notes: Week 10 Chapter 7: Quantum Theory  3 Main Concepts We Will Learn About in This Chapter: o The energy and approximate location of electrons in atoms o Electrons have properties of both waves and particles o The energy of an electron is quantized: set at specific levels  Electromagnetic Spectrum Can cause Can break Can cause molecules to bonds rotate bonds to vibrate (heat) Has correct energy to excite electrons  Wavelength: (λ, lambda) the distance from peak to peak of a wave o Units: usually meters or nanometers  Frequency: (ν, nu) the number of times per second a peak of a wave would pass a stationary point o Units: usually Hertz (s ) 8  Speed of light: (c) 2.998 x 10 m/s  Equations to memorize o ν*λ = c o E = h*ν h = Planck’s constant (6.626 x 1034J*s) o E = hc/λ E = energy per photon of light  Simplified version of Hydrogen atom e - - - e e Absorbs Releases energy energy + +

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