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University Physics, Volume 3 | 17th Edition | ISBN: 9781938168185 | Authors: Samuel J. Ling ISBN: 9781938168185 2032

Solution for problem 95 Chapter 4

University Physics, Volume 3 | 17th Edition

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University Physics, Volume 3 | 17th Edition | ISBN: 9781938168185 | Authors: Samuel J. Ling

University Physics, Volume 3 | 17th Edition

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Problem 95

A diffraction grating produces a second maximum that is 89.7 cm from the central maximum on a screen 2.0 m away. If the grating has 600 lines per centimeter, what is the wavelength of the light that produces the diffraction pattern?

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Wednesday, February 3, y Lecture 3 Valence Shell Review ­ outermost shell = valence shell ­ 1st­ 2 electrons ­ 2nd­ 8 electrons ­ 3rd­ 8 electrons ­ An atom is most stable when its outer most shell is filled Ionic Bonds ­ Ex: NaCL • Bonds are weak • Na gives up an electron to Cl and now has 11 protons and 10 electrons ­ not electrically balanced anymore • Cl accepts an electron from Na and now has 17 protons and 18 electrons • Na has a full second shell and Cl has a full 3rd shell • NaCl falls apart in a solution because of the weak bond ­ Cations­ positive charge ­ Anions (electrolytes)­ negative charge 1 Wednesday, February 3, y Covalent Bonds ­ Ex: CH4 (Methane) • Strong bonds • Do not fall apart in a solution • The 4 hydrogens each give up 1 electron to form electron pairs with the carbons outer shell • Both carbon and hydrogen now have their outer shell filled • Certain atom types have a stronger attraction than others Electronegativity ­ O > N > C = H ­ The greater the electronegativity = the greater the amount of electrons Polar v. Non-polar ­ Polar • Covalent bonds that have electrons that are not shared equally • Molecules tend to be soluble in water • Hydrophilic ­ Non­polar (neutral) • Electron pairs are shared equally • Molecules are not soluble in water • Hydrophobic 2

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Chapter 4, Problem 95 is Solved
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Textbook: University Physics, Volume 3
Edition: 17
Author: Samuel J. Ling
ISBN: 9781938168185

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