Now, let us think about iron (Fe). The total mass of BIF’s globally is estimated at 5.0×1017 kg, wherein iron accounts for approximately 35% by mass. The atomic mass of iron is 55.8 g/mole (0.0558 kg/mole). What is the total mass of iron in BIFs in kilograms and moles?Finally, take the values you have computed in units of moles, and express them as the molar ratio of iron (Fe) to oxygen (O2) of BIFs. You can do this by dividing both sides of the ratio by the larger number (Fe in this case). Knowing that the molecular mass of O₂ is 32 g/mole (0.032 kg/mole), how many moles of O₂ are contained withinBIFs?x 1018 moles of O₂ contained in BIF depositsNow, let us think about iron (Fe). The total mass of BIF's globally is estimated at 5.0×1017 kg, wherein iron accounts forapproximately 35% by mass. The atomic mass of iron is 55.8 g/mole (0.0558 kg/mole). What is the total mass of iron inBIFs in kilograms and moles?x 1017 kg of Fe contained in BIF depositsx 1018 moles of Fe contained in BIF depositsFinally, take the values you have computed in units of moles, and express them as the molar ratio of iron (Fe) tooxygen (O₂) of BIFs. You can do this by dividing both sides of the ratio by the larger number (Fe in this case).Fe:O₂ = 1:Your calculated ratio above should fall between the Fe:O₂ molar ratios of both Hematite (1:0.75) and Magnetite(1:0.67). Which molar ratio is your calculated value closest to (meaning which iron component, Hematite or Magnetite,is the more dominate in BIFs)?(

Banded-iron formation (BIF), a chemically precipitated deposit with layers of chert, chalcedony,…

Answered: Now, let us think about iron (Fe). The…

Applications and Investigations in Earth Science (9th Edition)

9th Edition

ISBN:9780134746241

Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Chapter1: The Study Of Minerals

Section: Chapter Questions

Problem 1LR

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Now, let us think about iron (Fe). The total mass of BIF’s globally is estimated at 5.0×10¹⁷ kg, wherein iron accounts for approximately 35% by mass. The atomic mass of iron is 55.8 g/mole (0.0558 kg/mole). What is the total mass of iron in BIFs in kilograms and moles?

Finally, take the values you have computed in units of moles, and express them as the molar ratio of iron (Fe) to oxygen (O₂) of BIFs. You can do this by dividing both sides of the ratio by the larger number (Fe in this case).