chemistry,again

3 Fe2O3 + 1 CO → 2 Fe3O4 + 1 CO2

how many grams of Fe2O3 are needed to prepare 255 g of Fe3O4?

a. 118 g
b. 552 g
c. 264 g
d. 383 g

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asked by Sarah
  1. Convert 255 g Fe3O4 to mols. mols = grams/molar mass.
    Using the balanced equation, convert mols Fe3O4 to mols Fe2O3.
    Convert mols Fe2O3 to grams.

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    posted by DrBob222

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