| 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
particles to masses by:
A) dividing by the number of particles by Avogadro's number to get number of moles, and
then
B) multiplying number of moles by the molar
mass
|
| 1. What would be the mass of 1.20 x 1024 molecules of
water?
|
2. What would be the mass of 2.41 x 1024
formula units of barium hydroxide? |
| 3. How much mass does 1.51 x 1022 atoms of neon
represent?
|
4. How much mass does 7.53 x 1022 molecules
of CH4 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 |