Chemistry 12th Edition

Published by McGraw-Hill Education
ISBN 10: 0078021510
ISBN 13: 978-0-07802-151-0

Chapter 3 - Mass Relationships in Chemical Reactions - Questions & Problems - Page 113: 3.128


Yes, 1 gram of hydrogen molecules contains as many atoms as 1 gram of hydrogen atoms.

Work Step by Step

Whether there is 1 gram of H molecules or 1 gram of H atoms, hydrogen is the only element present in both cases. Because hydrogen has a set molar mass, as do all elements, 1 gram of hydrogen will always be 1 gram of hydrogen. If you compare 1 gram of H atoms and 1 gram of H$_2$ molecules, there will be half as many H$_2$ molecules, since there are two H atoms per molecule. However, the number of atoms is the same.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.