Which of the following is the correct molar mass (to two decimal places) of C6H12N?

• A. 98.17 g/mol
• B. 112.23 g/mol
• C. 94.13 g/mol
• D. 110.18 g/mol

Answer: (D)

Verified step by step guidance

1. Identify the molecular formula given: C6H12N, which means the molecule contains 6 carbon (C) atoms, 12 hydrogen (H) atoms, and 1 nitrogen (N) atom.
2. Find the atomic masses of each element from the periodic table: Carbon (C) ≈ 12.01 g/mol, Hydrogen (H) ≈ 1.008 g/mol, Nitrogen (N) ≈ 14.01 g/mol.
3. Calculate the total mass contributed by each element by multiplying the number of atoms by their atomic masses: For carbon, multiply 6 by 12.01; for hydrogen, multiply 12 by 1.008; for nitrogen, multiply 1 by 14.01.
4. Add all these individual masses together to get the molar mass of C6H12N: Molar mass = (6 × 12.01) + (12 × 1.008) + (1 × 14.01).
5. Round the final sum to two decimal places to find the molar mass and compare it with the given options to identify the correct molar mass.