Ammonium Nitrate NH₄NO₃ has greatest % of nitrogen by mass than Ammonium Phosphate (NH₄)₃PO₄.
Two compounds are given, one is Ammonium Nitrate NH₄NO₃ and the other is Ammonium Phosphate (NH₄)₃PO₄.
The mass of Nitrogen is 14 g/mol. The mass of Oxygen is 16 g/mol. The mass of Phosphorous is 31 g/mol. The mass of Hydrogen is 1 g/mol.
Now, calculating the mass of Ammonium Nitrate NH₄NO₃,
Mass = 14+(4x1)+14+(3x16)
Mass = 80 g/mol.
% Nitrogen in Ammonium Nitrate = 14/80 x 100
% Nitrogen in Ammonium Nitrate = 17.5%.
The mass of Ammonium Phosphate (NH₄)₃PO₄,
Mass = 3[14 + (4x1)]+31+(4x16)
Mass = 149 g/mol.
% Nitrogen in Ammonium Phosphate = 14/149 x 100
% Nitrogen in Ammonium Phosphate = 9.39%.
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