Unsure how to solve second side of the balance

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Grade12CollegeChem
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Unsure how to solve second side of the balance

Post by Grade12CollegeChem »

3NH4NO3 + Na3PO4 = (NH4)3PO4 + 3NaNO3

assuming we started with 30grams of ammonium nitrate and 50grams of phosphate.

here is what I have:

mNH4NO3= 30g
MNH4NO3= 80g/mol
nNH4NO3= .375 mol

its probably easy and im just over thinking it
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