Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 2 - Atoms, Molecules, and Ions - Exercises - Page 77: 2.73b



Work Step by Step

Potassium is an alkali metal, so it has a charge of 1+. The Sulfate ion, which has a chemical formula of $(SO_4)2-$, has a charge of 2-. Since the magnitude of the sulfate charge is twice as great as the magnitude of the Potassium charge, there must be two Potassium atoms for every one Sulfate ion to create a balanced charge. Thus, the chemical formula for Potassium Sulfate is $K_2(SO_4)$.
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.