| Name__________________________ |
Section____________________________ |
This page is designed to help students practice written problems, and is meant to be
printed out. Hit the print command and show all work in the spaces provided.
Round answers correctly and show proper units.
Change the following number of
moles to number of particles by multiplying by Avogadro's number.
# of particles = # of moles x (6.02 x 1023) |
| 1. How many atoms does 2.0 moles of He represent?
|
2. How many sodium ions are in 3.0 moles of NaCl? |
| 3. How many molecules are in 0.25 moles of CH4?
|
* 4. How many total atoms are in 1.0
moles of H2O ? |
Please forward all questions, comments and criticisms to Gregory L. Curran.
© Copyright 2004 Fordham Preparatory School, All Rights Reserved.
Last Modified March 18, 2004 |