Answer
$2.22$ moles of $H_2O$
Work Step by Step
1. Calculate the molar mass $(H_2O)$:
$H: 1.008g * 2= 2.016g +$
$O: 16.00g$
= 18.02g/mol
2. Calculate the number of moles $(H_2O)$
$ 40.0g \times \frac{1 mole}{ 18.02g} = 2.22 moles$
Chemistry: An Introduction to General, Organic, and Biological Chemistry (12th Edition)
by Timberlake, Karen C.
Published by
Prentice Hall
ISBN 10:
0321908449
ISBN 13:
978-0-32190-844-5
Chapter 7 - Section 7.2 - Molar Mass and Calculations - Questions and Problems - Page 221: 7.20c
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