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PLEASE HELP----
Given the following equation : 2FePo4 + 3Na2SO4 = Fe2(SO4)3 + 2Na3PO4
If I perform this reaction with 25 g of Iron(III) phosphate and an excess of Sodium sulfate, what is my theoretical yeild in grams of Iron (III) sulfate ? If I make 18.5 g of Iron (III) sulfate, what is my percent yeild?

side note i have more questions for points help me