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2010-03-07T17:04:43+01:00
N₂+3H₂-->2NH₃
N₂=14g*2=28g
H₂=1g*2=2g 3H₂=3*2g=6gH₂
NH₃=14g+1g*3=14g+3g=17g 2NH₃=2*17g=34g
28gN₂+6gH₂--->34gNH₃

28gN₂---34gNH₃
x ---25gNH₃
x=(28*25):34=20,588g≈21g