Why hydrogen fluoride is a gas at room temperature?
1 answer:
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2NO + O₂ → 2NO₂
If mass of NO₂ = 1.31 g
then moles of NO₂ =
= 
= 0.0285 mol
The mole ratio of O₂ : NO₂ based on the equation is 1 : 2.
∴ if moles of NO₂ = 0.0285 mol
then moles of O₂ = 0.0285 mol ÷ 2
= 0.01425 mol
Grams of O₂ needed = mole × molar mass
= 0.01425 mol × (16 × 2) g/mol
= 0.456 g
If mass of NO₂ = 1.31 g
then moles of NO₂ =
= 0.0285 mol
The mole ratio of O₂ : NO₂ based on the equation is 1 : 2.
∴ if moles of NO₂ = 0.0285 mol
then moles of O₂ = 0.0285 mol ÷ 2
= 0.01425 mol
Grams of O₂ needed = mole × molar mass
= 0.01425 mol × (16 × 2) g/mol
= 0.456 g
