Question

How many atoms does 2.0 moles of He represent

Answer 1

According to Avogadro's number, 1 mol of any substance contains 6.022 × 10²³ particles. As a result, 2.0 moles of helium (He) represent 2.0 mol × 6.022 × 10²³ = 1.2 × 10²⁴ atoms.

Answer: 1.2 × 10²⁴ atoms