Introductory Chemistry (5th Edition)

Published by Pearson
ISBN 10: 032191029X
ISBN 13: 978-0-32191-029-5

Chapter 5 - Molecules and Compounds - Exercises - Cumulative Problems - Page 162: 99


A. platinum (IV) oxide, 227.09 amu B. dinitrogen pentoxide, 108.02 amu C. aluminum chlorate, 277.33 amu D. phosphorus pentabromide, 430.47 amu

Work Step by Step

Find the formula mass by adding up the atomic weights of every atom that appears in the molecule. Example for A: 2 (15.999) + 195.094 = 227.08 Adding Roman numerals in parenthesis is only necessary when the cation can have different charges. Add Greek prefixes to both atoms in molecular compounds to account for their number. For ionic compounds, write the cation followed by the anion ending with "-ide"
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.