Answer:
1.38 mol.
Explanation:
Using cross multiplication:
1.0 mole of H₂SO₄ contains → 6.022 x 10²³ molecules.
??? moles of H₂SO₄ contains → 8.31 x 10²³ molecules.
∴ The no. of moles in (8.31 x 10²³ molecules) of H₂SO₄ = (1.0 mol)(8.31 x 10²³) / (6.022 x 10²³ molecules) = 1.38 mol.
