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Question

How much oxygen (in grams) will form from 24.7 g of N₂O₅?

 

 2N₂O₅(s) → 4NO₂(g) + O₂(g)

 

 × 10    ^{(Click to select)}   g O₂

Answer 1

2N₂O₅(s) → 4NO₂(g) + O₂(g) ... balanced equation

Use the mole ratios in the balanced equation to find your answers. You'll also need to use the molar mass of N₂O₅ (108 g/mol) and O₂ (32 g/mol) to convert moles to grams.

24.7 g N₂O₅ x 1 mol N₂O₅ / 108 g x 1 mol O₂ / 2 mols N₂O₅ x 32 g O₂ / mol O₂ = 3.70 g O₂