69. Iron is found in Earth's crust as several different iron com-pounds. Calculate the mass (in kg) of each compound thatcontains 1.0 × 103 kg of iron.(a) Fe2O3 (hematite)(b) Fe3O4 (magnetite)(c) FeCO3 (siderite)

69. Answer: Molar massesFe: 55.85 g/molO: 16.00 g/molC: 12.00 g/mol a)Fe2O3(hematite) Mass of Fe in…

Answered: 69. Iron is found in Earth's crust as…

Chemistry

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Chapter3: Stoichiometry

Section: Chapter Questions

Problem 15ALQ: Chlorine exists mainly as two isotopes, 37Cl and 33Cl. Which is more abundant? How do you know?

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69. Iron is found in Earth's crust as several different iron com- pounds. Calculate the mass (in kg) of each compound that contains 1.0 × 103 kg of iron. (a) Fe2O3 (hematite) (b) Fe3O4 (magnetite) (c) FeCO3 (siderite)