which is the answer plzzzzzzzzzz
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The Given Balanced Equation is :
(NH₄)₂Cr₂O₇ ====> N₂ + 4H₂O + Cr₂O₃
One Mole of (NH₄)₂Cr₂O₇ weighs : (18 × 2) + 104 + 112 = 252 grams
One Mole of N₂ weighs : 28 Grams
From the Balanced Equation we can say that :
One Mole of (NH₄)₂Cr₂O₇ on Thermal Decomposition gives One Mole of N₂
⇒ 252 grams of (NH₄)₂Cr₂O₇ gives 28 grams of N₂
⇒ 63 grams of (NH₄)₂Cr₂O₇ gives (63 × 28)/252 grams of N₂
⇒ 63 grams of (NH₄)₂Cr₂O₇ gives 7 grams of N₂
We know that : At STP 28 grams of N₂ occupies a volume of 22.7 liters
⇒ 7 grams of N₂ Occupies (7 × 22.7)/28 liters
⇒ 7 grams of N₂ Occupies 5.675 liters
⇒ 63 grams of (NH₄)₂Cr₂O₇ gives 5.675 liters of N₂
Option (1) is the Answer
isaacr7:
is it 22.4 or 22.7 litres
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