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N2 + 3H2 ==> 2NH3moles N2 = 1.20 moles

moles NH3 formed = 1.20 moles N2 x 2 moles NH3/1 moles N2 = 2.40 moles NH3

mass NH3 = 2.40 moles x 17 g/mole = 40.8 g NH3

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Q: What mass of NH3 is produced when 1.20 mol of N2 react completely in the following equation N2 plus 3H2 2NH3?
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