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Iron is found in Earth's crust as several iron compounds. Calculate the mass in kilograms of the amount of each of the following iron compounds that contains 8.0×10^3kg of iron
Fe2O3 (hematite)

Express your answer using two significant figures.

Iron is found in Earths crust as several iron compounds Calculate the mass in kilograms of the amount of each of the following iron compounds that contains 8010 class=

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mickymike92

The mass of hematite that contains 8.0×10³ kg of iron is 2.29 × 10⁴ kg.

What are iron ores?

Iron ores refers to minerals in which iron occur in combined form found in the earth's crust.

Some ores of iron include:

  • hematite,
  • magnetite,
  • limonite, and
  • siderite.

Molar mass of hematite, Fe₂O₃ = 160 g/mol

Molar mass iron = 56 g/mol

Percent mass of iron in hematite = 56/160 = 35%

The mass of hematite that contains 8.0×10³ kg of iron = 8.0 × 10³kg/0.35 = 2.29 × 10⁴ kg.

Therefore, the mass of hematite that contains 8.0×10³ kg of iron is 2.29 × 10⁴ kg.

Learn more about iron ores at: https://brainly.com/question/4693242

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