Chemistry
Nitrogen and hydrogen react to form ammonia.
N2 (g) + 3H2 (g) ⟶ 2NH3 (g)
If 1000 g of H2 react with 2000 g of N2:
(a) Will any of the two reactants remain unreacted? If yes, which one and what will be its mass?
(b) Calculate the mass of ammonia (NH3) that will be formed.
Mole Concept
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Answer
(a) 28 g of nitrogen requires 6 g of hydrogen
∴ 2000 g of nitrogen requires x 2000
= 428.57 g of hydrogen.
So mass of hydrogen left unreacted = 1000 - 428.57 = 571.42 g
571.42 g of hydrogen is left unreacted.
(b) 28 g of nitrogen forms 34 g NH3
∴ 2000 g of nitrogen forms x 2000
= 2428.57 g of NH3
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