Explanation Section: 1 To determine: The number of moles in a 1.00 -kg bottle of water. Answer: The number of moles is 55.6 mol in a 1.00 kg bottle of water. Given info: The mass of the bottle of water is 1.00 kg and the molar mass is 18 gm/mol Expression for mass of a substance in terms of number of moles and the molar mass is, m T = n M m T is the mass of a substance n is the number of moles M is the molar mass Substitute 1.00 kg for m T and 18 gm/mol for M . ( 1.00 kg ) = n ( 18 gm/mol × 1000 kg ) n = 1.00 kg 18 × 10 − 3 kg/mol = 1000 18 mol = 55.6 mol Thus, the number of moles is 55.6 mol in a 1.00 -kg bottle of water Section: 2 To determine: The number of molecules in a 1.00 -kg bottle of water. Answer: The number of molecules in a 1.00 -kg bottle of water are 3.35 × 10 25 molecules

University Physics with Modern Physics (14th Edition)

14th Edition

ISBN: 9780321973610

Author: Hugh D. Young, Roger A. Freedman

Publisher: PEARSON

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Chapter 18, Problem 18.21E

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The number of moles and molecules in a 1.00−kg bottle of water.

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Chapter 18, Problem 18.20E

Chapter 18, Problem 18.22E

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Chapter 18 Solutions

University Physics with Modern Physics (14th Edition)

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The number of moles and molecules in a 1.00 − kg bottle of water.

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The number of moles and molecules in a 1.00−kg bottle of water.

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Chapter 18 Solutions