The molecular formula H₂SO₄ represents sulfuric acid. To determine the number of atoms in a molecule of H₂SO₄, we can count the individual elements present and multiply them by their respective subscripts:
H₂SO₄:
- H (hydrogen): 2 atoms
- S (sulfur): 1 atom
- O (oxygen): 4 atoms
Adding them up, we have:
2 + 1 + 4 = 7
Therefore, a molecule of H₂SO₄ contains a total of 7 atoms.