1. The number of mole of aluminum in each can is 2 moles
2. The number of molecules of aluminum that Darlene gave to the recycling guy altogether is 4.816×10²⁶ molecules
Description of mole
The mole of a substance is related to it's mass and molar mass according to the following equation:
Mole = mass / molar mass
1. How to determine the mole in each can of aluminum
- Mass of one Al can = 53.96 g
- Molar mass of Al = 27 g/mol
- Mole of one Al can =?
Mole = mass / molar mass
Mole of one Al can = 53.96 / 27
Mole of one Al can = 2 moles
2. How to determine the number of molecule
- Number of Al cans = 400
- Mole of one Al can = 2 moles
- Total mole = 2 × 400 = 800 moles
- Number of molecules =?
From Avogadro's hypothesis,
1 mole of Al = 6.02×10²³ molecules
Therefore,
800 moles of Al = 800 × 6.02×10²³
800 moles of Al = 4.816×10²⁶ molecules
Thus, Darlene gave to the recycling guy a total of 4.816×10²⁶ molecules
Learn more about mole and Avogadro's number:
https://brainly.com/question/13314627
https://brainly.com/question/26141731
#SPJ1
