4.90 Iron metal can be refined (rom the mineral hematite (Fe 2 O 3 ). One way of converting the mineral to iron is to react it with carbon monoxide, as shown below: Fe 2 O 3 + 3 CO → 2 Fe + 3 CO 2 Because the hematite is obtained from various ores, it is usually not in a pure form. Suppose an iron manufacturer has 2.00 X 10 5 kg of ore available, and the ore is 93% Fe 2 O 3 by mass. (There is no iron in the remaining 7% of the ore.) How many moles of Fe 2 O 3 are present in this ore? How many kg of pure iron could be obtained from this sample of ore? Assume that the process has a 100% yield and that excess CO is available.
4.90 Iron metal can be refined (rom the mineral hematite (Fe 2 O 3 ). One way of converting the mineral to iron is to react it with carbon monoxide, as shown below: Fe 2 O 3 + 3 CO → 2 Fe + 3 CO 2 Because the hematite is obtained from various ores, it is usually not in a pure form. Suppose an iron manufacturer has 2.00 X 10 5 kg of ore available, and the ore is 93% Fe 2 O 3 by mass. (There is no iron in the remaining 7% of the ore.) How many moles of Fe 2 O 3 are present in this ore? How many kg of pure iron could be obtained from this sample of ore? Assume that the process has a 100% yield and that excess CO is available.
Solution Summary: The author explains how to calculate moles of hematite, mass of pure iron in kg.
4.90 Iron metal can be refined (rom the mineral hematite (Fe2O3). One way of converting the mineral to iron is to react it with carbon monoxide, as shown below:
Fe
2
O
3
+
3 CO
→
2 Fe
+
3 CO
2
Because the hematite is obtained from various ores, it is usually not in a pure form. Suppose an iron manufacturer has 2.00 X 105 kg of ore available, and the ore is 93% Fe2O3 by mass. (There is no iron in the remaining 7% of the ore.) How many moles of Fe2O3are present in this ore? How many kg of pure iron could be obtained from this sample of ore? Assume that the process has a 100% yield and that excess CO is available.
In the box below, specify which of the given compounds are very soluble in polar aprotic solvents. You may select more than one compound. Choose one or more: NaCl NH4Cl CH3CH2CH2CH2CH2CN CH3CH2OH hexan-2-one NaOH CH3SCH3
On the following structure, select all of the atoms that could ACCEPT a hydrogen bond. Ignore possible complications of aromaticity. When selecting be sure to click on the center of the atom.
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