What is the molar mass of sulfur dioxide (SO_2)?

• A. 64.07 g/mol
• B. 80.07 g/mol
• C. 32.07 g/mol
• D. 48.07 g/mol

Answer: (A)

Verified step by step guidance

1. Identify the chemical formula of sulfur dioxide, which is SO\_2, meaning it contains one sulfur (S) atom and two oxygen (O) atoms.
2. Find the atomic masses of sulfur and oxygen from the periodic table: sulfur (S) has an atomic mass of approximately 32.07 g/mol, and oxygen (O) has an atomic mass of approximately 16.00 g/mol.
3. Calculate the total mass contributed by sulfur by multiplying the number of sulfur atoms by its atomic mass: 1 \times 32.07 g/mol.
4. Calculate the total mass contributed by oxygen by multiplying the number of oxygen atoms by its atomic mass: 2 \times 16.00 g/mol.
5. Add the masses of sulfur and oxygen together to find the molar mass of SO\_2: (1 \times 32.07) + (2 \times 16.00) g/mol.