The molar mass of nitrogen gas (N₂) is 28.02 grams per mole. This value is calculated by adding the atomic masses of the two nitrogen atoms in the molecule. The atomic mass of a single nitrogen atom is approximately 14.01 atomic mass units (amu). Since nitrogen gas consists of two nitrogen atoms bonded together, the molar mass is 14.01 amu × 2 = 28.02 amu. This means that one mole of nitrogen gas weighs 28.02 grams.
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