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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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smialijan smialijan
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12 years ago
ammonia can be produced from 200.0 kg ammonia and 40.0 kg hydrogen?
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#1
12 years ago
Correcting your question-"In a chemical reaction, 7.0 kg nitrogen adds to 1.5 kg hydrogen to produce 8.5 kg ammonia. What mass of
ammonia can be produced from 200.0 kg NITROGEN and 40.0 kg hydrogen?"

N2 + 3H2 Rightwards Arrow 2NH3

(200 kg N2 x 1000 g/kg) / 28.0134 g/mole = 7139 mole N2
(40.0 kg H2 x 1000 g/kg) / 2.0158 g/mole = 19843 mole H2
H2 is limiting (7139 mole N2 requires 3x7169 = 21507 mole H2)
19843 mole H2 will yield 13229 mole NH3 [(2/3)x19843 = 13229)
13229 mole NH3 x 17.03 g/mole = 225295 g
ANSWER: 225 kg NH3 (3 s.f.)
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