Question
An iron ore is found to contain $9.24 \%$ hematite (a compound that contains iron). (a) How many tons of this ore would contain 8.40 tons of hematite? (b) How many kilograms of this ore would contain 9.40 kg of hematite?
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### Part (a): How many tons of this ore would contain 8.40 tons of hematite? ** Show more…
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An iron ore is found to contain $9.24 \%$ hematite (a compound that contains iron). (a) How many tons of this ore would contain 5.79 tons of hematite? (b) How many kilograms of this ore would contain $6.40 \mathrm{~kg}$ of hematite?
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Iron is found in Earth's crust as several iron compounds. Calculate the mass (in kg) of each compound that contains 7.3×10^3 kg of iron. Fe2O3 (hematite) Express your answer in kilograms to two significant figures. Fe3O4 (magnetite) Express your answer in kilograms to two significant figures. FeCO3 (siderite) Express your answer in kilograms to two significant figures.
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