Explain the mass fraction of phosphorus in the formula

Reference no: EM13521158

Fertilizer is made ??by mixing equal masses of potassium nitrate (KNO3) and ammonium phosphate ((NH4)3PO4). What is the mass fraction of phosphorus in this formula? I've been trying to solve this for 15 minutes, and I feel like I'm missing something obvious.

Reference no: EM13521158

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