| 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 masses to
number of particles by:
A) dividing by the molar mass to get the number of moles, and then
B) multiplying number of moles by Avogadro's number
|
| 1. How many molecules does 36.0 grams of water represent?
|
2. How many molecules does 11.0 grams of CO2
represent? |
| 3. How many atoms does 3.0 grams of carbon represent?
|
* 4. How many formula units does 200.0 grams of calcium
carbonate represent? |
Please forward all questions, comments and criticisms to Gregory L. Curran.
© Copyright 2004 Fordham Preparatory School, All Rights Reserved.
Last Modified March 24, 2004 |