What is the molar mass of acetone (C3H6O)?

• A. 74.12 g/mol
• B. 58.08 g/mol
• C. 60.10 g/mol
• D. 42.08 g/mol

Answer: (B)

Verified step by step guidance

1. Identify the molecular formula of acetone, which is C\_3H\_6O.
2. Determine the atomic masses of each element from the periodic table: Carbon (C) ≈ 12.01 g/mol, Hydrogen (H) ≈ 1.008 g/mol, Oxygen (O) ≈ 16.00 g/mol.
3. Calculate the total mass contributed by each element by multiplying the atomic mass by the number of atoms in the formula: For carbon, multiply 12.01 g/mol by 3; for hydrogen, multiply 1.008 g/mol by 6; for oxygen, multiply 16.00 g/mol by 1.
4. Add the masses of all elements together to find the molar mass of acetone: Total molar mass = (3 × 12.01) + (6 × 1.008) + (1 × 16.00) g/mol.
5. Sum these values to get the final molar mass of acetone in g/mol.