Calculate the mass fraction of phosphorus in the compound Fe3 (PO4) 2.
| December 9, 2020 | education
w (P) = m (P) / m (Fe3 (PO4)
w (P) = 31 * 2 / (56 * 3 + 62 + 128) = 62/358 = 0.17 * 100% = 17%
Answer: the mass fraction of phosphorus is seventeen percent
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