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How many grams of Carbon are needed to completely react with 125g of Iron oxide, Fe2O3 ?Equation: Fe2O3 + 3C —> 2Fe + 3CO

Sagot :

Equation: Fe2O3 + 3C => 2Fe + 3CO

Don't forget to balance your equation.

We need the mass of C to react with 125 g of Iron oxide, Fe2O3.

For this, we must have the atomic mass of C and the molar mass of Fe2O3:

For C) 12.0 g/mol

For Fe2O3) 159 g/mol

Procedure: use stoichiometry

3 x 12.0 g C --------- 159 g Fe2O3

x --------- 125 g Fe2O3

x = 28.3 g

Answer: Mass of C needed = 28.3 g

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