M&M Lab
Purpose: To calculate the number of moles, total mass and the number of atoms present.
Introduction: A compound has been chemically decomposed into its component elements. Each M&M represents one
mole of a particular type of “element.” Each color represents a different “element” and has its own symbol and
atomic mass, given in the chart below.
M & Ms
Color
Symbol
Atomic Mass (g/mol)
Red
R
1
Orange
Or
2
Yellow
Y
3
Green
G
4
Blue
Bl
5
Brown
Br
6
You must show all work to receive credit!
Procedure:: Count each color of “element” and fill out the chart below. Each M&M represents one mole of the
“element.”
“Element”
R
Or
Y
G
Bl
Bn
Number of moles present
Total mass of “element”
present (g)
Number of “atoms”
present