Question

Calculate how many moles of NO₂ form when each quantity of reactant completely reacts. 2 N₂O₅ (g) → 4 NO₂(g) + O₂(g)

a. 2.5 mol N₂O₅
b. 6.8 mol N₂O₅
c. 15.2 g N₂O₅
d. 2.87 kg N₂O₅

Answer 1

To calculate the moles of NO2 formed, use the mole ratio from the balanced chemical equation. Multiply the number of moles of N2O5 by the mole ratio of NO2:N2O5 to find the moles of NO2 formed.

Step-by-step explanation:

According to the balanced chemical equation, 2 moles of N2O5 produce 4 moles of NO2. Therefore, the mole ratio is 2:4 or 1:2. To calculate the number of moles of NO2 formed, you can use the mole ratio.

For example, if you have 2.5 moles of N2O5, you can multiply it by the mole ratio 1:2 to find the moles of NO2 formed.

2.5 moles N2O5 x (2 moles NO2 / 1 mole N2O5) = 5 moles NO2