Sulfur trioxide reacts with water to form sulfuric acid according to the following reaction: SO₃ + H₂O → H₂SO₄ Given the atomic mass of hydrogen is 1 amu, the atomic mass of oxygen is 16 amu, and one molecule of sulfuric acid has a mass of 98 amu, what is the atomic mass of sulfur trioxide?
116 amu
80 amu
48 amu
32 amu
To find the atomic mass of sulfur trioxide (SO₃), we need to add the atomic masses of sulfur and three oxygen atoms.
The atomic mass of sulfur is 32 amu.
The atomic mass of oxygen is 16 amu.
Therefore, the total atomic mass of sulfur trioxide (SO₃) is:
32 amu + (3 × 16 amu) = 32 amu + 48 amu = 80 amu.
Therefore, the atomic mass of sulfur trioxide is 80 amu.