The mass of ammonia in grams produced when of dinitrogen quantitatively reacts with of dihydrogen is .

Question

The mass of ammonia in grams produced when  of dinitrogen quantitatively reacts with  of dihydrogen is .

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Strategy:
 This limiting reagent problem follows the Haber process stoichiometry: . Convert masses to moles, identify the limiting reactant, and then calculate the mass of the product.

Step 1: Calculate moles of reactants
- Moles of .
- Moles of .

Step 2: Identify Limiting Reagent
 stoichiometric ratio .
For  , we need  .
We have   (excess). Thus,  is limiting.

Step 3: Calculate product mass
1 mole  moles .
Moles of .

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