iron ore is impure fe2o3. when fe2o3 is heated with an excess of carbon (coke), metallic iron and carbon monoxide gas are produced. from a sample of ore weighing 938 kg, 523 kg of pure iron is obtained. what is the mass percent of fe2o3 in the ore sample, assuming that none of the impurities contain fe?

Respuesta :

The percentage of Fe2O3 in the ore sample​ is 69.04%

Rust is an iron oxide, which one?

Iron oxide, which is highly prevalent, is known by the common name "rust." Because iron and oxygen combine so easily, forming the chemistry Fe2O3, iron oxide, which is abundant, is an uncommon occurrence in nature.

Burning of Fe2O3?

Iron oxide, often known as ferric oxide (Fe2O3), does not burn unless it is finely powdered. Iron oxide (FeO) can, however, spontaneously ignite in air due to its high flammability and reactivity.

Weight of sample- 938 kg.

Weight of iron- 523 kg.

Weight of Fe2O3 = 523*159.69/255.85

=>326.43 .

% of Fe2O3 = 647.62/938*100...

=> 69.04%.

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