The useful metal manganese can be extracted from the mineral rhodochrosite by a two-step process. In the first step, manganese(II) carbonate and oxygen react to form manganese (IV) oxide and carbon dioxide: 2MnCO₂ (s) + O₂(g) - 2 MnO₂ (s) + 2 CO₂ (g) In the second step, manganese (IV) oxide and aluminum react to form manganese and aluminum oxidide: 3 MnO₂ (s) + 4Al(s) 3 Mn(s) + 2 Al₂O3(s) Suppose the yield of the first step is 96.% and the yield of the second step is 85.%. Calculate the mass of manganese (II) carbonate required to make 8.0 kg of manganese. Be sure your answer has a unit symbol, if needed, and is rounded to the correct number of significant digits.

The useful metal manganese can be extracted from the mineral rhodochrosite by a two-step process. In the first step, manganese(II) carbonate and oxygen react to form manganese (IV) oxide and carbon dioxide: 2MnCO₂ (s) + O₂(g) - 2 MnO₂ (s) + 2 CO₂ (g) In the second step, manganese (IV) oxide and aluminum react to form manganese and aluminum oxidide: 3 MnO₂ (s) + 4Al(s) 3 Mn(s) + 2 Al₂O3(s) Suppose the yield of the first step is 96.% and the yield of the second step is 85.%. Calculate the mass of manganese (II) carbonate required to make 8.0 kg of manganese. Be sure your answer has a unit symbol, if needed, and is rounded to the correct number of significant digits.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".

Question

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The useful metal manganese can be extracted from the mineral rhodochrosite by a two-step process. In the first step, manganese (II) carbonate and oxygen
react to form manganese(IV) oxide and carbon dioxide:
2MnCO3(s) + O₂(g)
2 MnO₂ (s) + 2 CO₂ (g)
In the second step, manganese(IV) oxide and aluminum react to form manganese and aluminum oxidide:
3 MnO₂ (s) + 4Al(s) → 3Mn(s) -
+
2 Al₂O3 (s)
Suppose the yield of the first step is 96.% and the yield of the second step is 85.%. Calculate the mass of manganese (II) carbonate required make 8.0 kg of
manganese.
Be sure your answer has a unit symbol, if needed, and is rounded to the correct number of significant digits.
0
x10
Olo
X
ロ・ロ

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