Chemistry: The Molecular Science (5th Edition)

Published by Cengage Learning
ISBN 10: 1285199049
ISBN 13: 978-1-28519-904-7

Chapter 14 - Acids and Bases - Conceptual Exercise 14.25 - Lewis Acids and Bases - Page 645: b


$BCl_3$ is a Lewis acid.

Work Step by Step

- In the Lewis structure of this molecule, there are 3 "Cl" atoms connected to the central "B" atom. - Since "B" has, naturally, 3 electrons in its valence shell, and it is making 3 covalent bonds, there is a total of 6 electrons in its valence shell. - "B" is from the second row of periodic table: Capacitiy of 8 electrons on the valence shell. - Therefore, there is space for more 2 electrons, so $BCl_3$ can act as a Lewis acid, receiving these electrons from other compound.
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