Answer to Question #238600 in General Chemistry for Ash

Question

How many atoms of sulfur are present in 2.40 moles of sulfur trioxide SO3

Answer 1

1 mole of SO₃ = 6.022 ×10²³ molecules (Avogadro's constant)

2.40 moles of SO₃ = (2.40) × (6.022 × 10²³ ) molecules

=14.4528 × 10²³ molecules

In 1 molecule of SO₃ there is 1 atom

Therefore in 2.40 moles of SO₃ there are also

=14.4528 ×10²³ atoms