What is the molar mass of N_2?

• A. 2.02 g/mol
• B. 14.01 g/mol
• C. 28.02 g/mol
• D. 32.00 g/mol

Answer: (C)

Verified step by step guidance

1. Identify the chemical formula of the molecule, which is \(\mathrm{N_2}\), meaning it consists of two nitrogen atoms bonded together.
2. Find the atomic mass of a single nitrogen atom from the periodic table, which is approximately 14.01 g/mol.
3. Since there are two nitrogen atoms in \(\mathrm{N_2}\), multiply the atomic mass of nitrogen by 2: \$2 \times 14.01$ g/mol.
4. Write the expression for the molar mass of \(\mathrm{N_2}\) as \(\mathrm{Molar\ mass} = 2 \times 14.01\ \mathrm{g/mol}\).
5. This calculation gives the molar mass of \(\mathrm{N_2}\), which you can then evaluate to find the final value.