Ammonia, NH3, reacts with Phosphoric acid to produce Ammonium hydrogenphosphate, (NH4)2HPO4.

What mass (in grams) of ammonia will react with 2.800E3 kg of Phosphoric acid?

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  1. 2NH3 + H3PO4 ==> (NH4)2HPO4
    mols H3PO4 ==> grams/molar mass = ?
    Using the coefficients in the balanced equation, convert mols H3PO4 to mols NH3.
    Now convert mols NH3 to grams. g = mols x molar mass

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