Question

How many atoms does 2.0 moles of He represent? Show work.

Answer 1

1 mole of each substance = 6.022 × 10²³

so, 1 mole of He has 6.022 × 10²³ atoms

• 2 moles of He has 2 × 6.022 × 10²³ atoms

• 2 moles of He has 12.044 × 10²³ atoms of He