# The number of moles of hydrogen molecules required to produce 20 moles of ammonia through Haber's process is :

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The number of moles of hydrogen molecules required to produce 20 moles of ammonia through Haber's process is :

(1) 10

(2) 20

(3) 30

(4) 40
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Some basic concepts of chemistry, stoichiometry and stoichiometric calculations