Respuesta :

Answer:

21.18 gm of H2

Explanation:

First you need the reaction equation:

N2 + 3H2 ===> 2 NH3

 you can see that 3/2  as many moles of H2 are required as are NH3

   this would be 10.59 moles of H2        (7.06 * 3/2)

      one mole of H2 = 2 gm

         10.59 * 2 = 21.18 gm

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