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Solution: Very small crystals composed of 1000 to 100,000

Chemistry: The Central Science | 13th Edition | ISBN: 9780321910417 | Authors: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward; Matthew E. Stoltzfus ISBN: 9780321910417 77

Solution for problem 91AE Chapter 3

Chemistry: The Central Science | 13th Edition

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Chemistry: The Central Science | 13th Edition | ISBN: 9780321910417 | Authors: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward; Matthew E. Stoltzfus

Chemistry: The Central Science | 13th Edition

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Problem 91AE

Very small crystals composed of 1000 to 100,000 atoms, called quantum dots, are being investigated for use in electronic devices.

(a)        A quantum dot was made of solid silicon in the shape of a sphere, with a diameter of 4 nm. Calculate the mass of the quantum dot, using the density of silicon (2.3 g/cm3).

(b)        How many silicon atoms are in the quantum dot?

(c)        The density of germanium is 5.325 g/cm3. If you made a 4-nm quantum dot of germanium, how many Ge atoms would it contain? Assume the dot is spherical.

Step-by-Step Solution:
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Chapter 15 Tuesday, February 2, 2016 2:59 PM  Chemical Equilibrium o "How far to completion/ to what extent does the reaction occur" o Important when trying to maximize production of compounds o N2 + 3H2 2NH3  How to maximize production of ammonia  By adjusting pressure and temperature o Equilibrium: a state in which there are no observable changes as time goes by  Achieved when  Rates of forward and reverse reactions are equal  Concentrations of reactants and products remain constant 

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Chapter 3, Problem 91AE is Solved
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Textbook: Chemistry: The Central Science
Edition: 13
Author: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward; Matthew E. Stoltzfus
ISBN: 9780321910417

Chemistry: The Central Science was written by and is associated to the ISBN: 9780321910417. The answer to “Very small crystals composed of 1000 to 100,000 atoms, called quantum dots, are being investigated for use in electronic devices.(a) A quantum dot was made of solid silicon in the shape of a sphere, with a diameter of 4 nm. Calculate the mass of the quantum dot, using the density of silicon (2.3 g/cm3).(b) How many silicon atoms are in the quantum dot?(c) The density of germanium is 5.325 g/cm3. If you made a 4-nm quantum dot of germanium, how many Ge atoms would it contain? Assume the dot is spherical.” is broken down into a number of easy to follow steps, and 91 words. The full step-by-step solution to problem: 91AE from chapter: 3 was answered by , our top Chemistry solution expert on 09/04/17, 09:30PM. This full solution covers the following key subjects: . This expansive textbook survival guide covers 305 chapters, and 6352 solutions. This textbook survival guide was created for the textbook: Chemistry: The Central Science, edition: 13. Since the solution to 91AE from 3 chapter was answered, more than 301 students have viewed the full step-by-step answer.

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Solution: Very small crystals composed of 1000 to 100,000