1. Avogadro's Number:
* Avogadro's number tells us the number of particles (atoms, molecules, etc.) in one mole of a substance. It's approximately 6.022 x 10²³ particles/mole.
2. Calculation:
* Step 1: Multiply the number of moles of sulfur by Avogadro's number:
0.40 moles S * (6.022 x 10²³ atoms/mole) = 2.4088 x 10²³ atoms
Answer: There are approximately 2.4088 x 10²³ atoms in 0.40 moles of sulfur.
