Answer:
N₂O₅
Step-by-step explanation:
To compare the number of moles of oxygen atoms, we will refer them to the same mass (1 g) of N.
N₂O₃
In 1 mole of N₂O₃ we have 3 moles of atoms of O.
In 1 mole of N₂O₃ we have 28 g of N.
The ratio moles of O:mass of N is 3 mol O : 28 g N = 0.11 mol O : 1 g N
N₂O₅
In 1 mole of N₂O₅ we have 5 moles of atoms of O.
In 1 mole of N₂O₅ we have 28 g of N.
The ratio moles of O:mass of N is 5 mol O : 28 g N = 0.18 mol O : 1 g N
NO₂
In 1 mole of NO₂ we have 2 moles of atoms of O.
In 1 mole of NO₂ we have 14 g of N.
The ratio moles of O:mass of N is 2 mol O : 14 g N = 0.14 mol O : 1 g N
NO
In 1 mole of NO we have 1 mole of atoms of O.
In 1 mole of NO we have 14 g of N.
The ratio moles of O:mass of N is 1 mol O : 14 g N = 0.07 mol O : 1 g N
N₂O₅ is the one with the greatest number of moles of oxygen atoms per gram of N.