A powder contains FeSO4.7H₂O (molar mass = 278.01 g/mol),

Last updated: 8/4/2022

A powder contains FeSO4.7H₂O (molar mass = 278.01 g/mol), among other components. A 3.360 g sample of the powder was dissolved in HNO, and heated to convert all iron to Fe³+. The addition of NH, precipitated Fe₂O3. xH₂O, which was subsequently ignited to produce 0.627 g Fe₂O3. What was the mass of FeSO4 7 H₂O in the 3.360 g sample? mass of FeSO4.7H₂O: BO