# Problem: Pure copper penny contains approximately 3.00x1022 copper atoms.1 doz = 121 gross = 1441 ream = 5001 = 6.022x1023Use these definitions to determine the following:1. How many dozens of copper atoms are in a penny.2. How many gross of copper atoms are in a penny.3. How many reams of copper atoms are in a penny.4. How many moles of copper atoms are in a penny.

###### FREE Expert Solution

1.

1 doz = 12
1 penny = 3.00x1022 copper atoms

= 2.5x1021 dozens

There are 2.5x1021 dozens of copper atoms in a penny.

2.

1 gross = 144
1 penny = 3.00x1022 copper atoms

= 2.08x1020 gross

There are 2.08x1020 gross of copper atoms in a penny.

3.

###### Problem Details

Pure copper penny contains approximately 3.00x1022 copper atoms.
1 doz = 12
1 gross = 144
1 ream = 500
1 = 6.022x1023

Use these definitions to determine the following:
1. How many dozens of copper atoms are in a penny.
2. How many gross of copper atoms are in a penny.
3. How many reams of copper atoms are in a penny.
4. How many moles of copper atoms are in a penny.