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: 2 MNCO,(s) + 0,(g) → 2 MnO,(s) + 2 CO,(g) In the second step, manganese(IV) oxide and aluminum react to form manganese and aluminum oxidide: 3 MnO,(s) + 4 Al(s) → 3 Mn(s) + 2 Al,0(s) Suppose the yield of the first step is 70.% and the yield of the second step is 82.%. Calculate the mass of manganese(II) carbonate required to make 4.0 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: 2 MNCO,(s) + 0,(g) → 2 MnO,(s) + 2 CO,(g) In the second step, manganese(IV) oxide and aluminum react to form manganese and aluminum oxidide: 3 MnO,(s) + 4 Al(s) → 3 Mn(s) + 2 Al,0(s) Suppose the yield of the first step is 70.% and the yield of the second step is 82.%. Calculate the mass of manganese(II) carbonate required to make 4.0 kg of manganese. Be sure your answer has a unit symbol, if needed, and is rounded to the correct number of significant digits.

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter10: Fuels, Organic Chemicals, And Polymers

Section: Chapter Questions

Problem 89QRT

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