Final answer:
The molar mass of nitrogen (N₂) is 28.01 g/mol. Knowing this value is essential for many chemical calculations and verifying the law of conservation of mass in reactions.
Step-by-step explanation:
The molar mass of molecular nitrogen, which is N₂, is 28.01 g/mol. This is calculated by adding together the atomic masses of two nitrogen atoms (approximately 14.01 g/mol each). Understanding the molar mass is critical for calculations involving gas equations, reaction stoichiometry, or when converting between moles and grams as it follows the law of conservation of mass. To elaborate, if we apply the molar mass in calculations involving standard temperature and pressure conditions, we can deduce various properties such as the density of the gas. It is also used to verify that mass is conserved in chemical reactions, for example, when 1 mol of nitrogen reacts to form different compounds such as ammonia (NH₃).