Chemistry: The Central Science (13th Edition)

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

Chapter 10 - Gases - Exercises: 10.38a

Answer

8.80 x 10^19 molecules

Work Step by Step

We are given the pressure, the temperature, and the volume of 1L. Therefore, we can use the ideal gas law: PV = nRT to find the number of moles, which is n = PV/RT = (3.00 x 10^-3atm) * (1L) / (0.0821 * 250K) = 1.46 x 10^-4 moles Then since we have moles, we can find the number of molecules by multiplying by Avogadro's number, 6.022 x 10^23, this gives: 8.80 x 10^19 molecules
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.