Answer
The molar mass of N₂O₃ = 76.0104 g/mol
Step-by-step explanation:
Using the atomic masses of elements from the periodic table; (N = 14.0067, O = 15.999).
Therefore, the molar mass of dinitrogen trioxide is calculated below.
N₂O₃ = 2(N) + 3(O)
N₂O₃ = 2(14.0067) + 3(15.999)
N₂O₃ = 28.0134 + 47.997
N₂O₃ =76.0104 g/mol
The molar mass of N₂O₃ = 76.0104 g/mol