The first step in the extraction of copper metal from its ore is shown below. The numbers beneath eachformula are the molar mass, M, (units of grams/mole) and the enthalpy of formation, AfH°, (units ofkilojoules/mole) of that substance.4 CuFeS2(s) + 9 O2(8)→ 2 Cu2S (s) +2 Fez03(s)+ 6 SO2(8)M/g-mol-118432.015916064.1A¢H°(kJ/mol)-197-80.0-824-297 5. Which of the following is the correct K. expression for this reaction?[2Cu2S] [2Fe,O3][6SO2][4CUFES2] [402][2Cu,sj? [2Fe,O3]² [6SO,j°[4CuFeS2]* [9021°А. К.В. К.[SO, 16[Cu,s]² [Fe,O3 [SO,6[CuFeS,1* [02С. К.. %3D. K.[02P

In equilibrium concepts, it is quite common to come across various equilibrium constants. The…

5. Which of the following is the correct K, expression for this reaction? [2Cu2S] [2Fe,O3] [6SO2] [4CUFES2] [402] [2Cu,S]² [2Fe;O3J² [6SO,J° [4CUFES,]* [902] А. К. В. К. [Cu,s]? [Fe,O3} [SO,1 [CuFeS,1* [02 [SO,16 C. K. = D. K. = %3D [02

5. Which of the following is the correct K, expression for this reaction? [2Cu2S] [2Fe,O3] [6SO2] [4CUFES2] [402] [2Cu,S]² [2Fe;O3J² [6SO,J° [4CUFES,]* [902] А. К. В. К. [Cu,s]? [Fe,O3} [SO,1 [CuFeS,1* [02 [SO,16 C. K. = D. K. = %3D [02

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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Question

The first step in the extraction of copper metal from its ore is shown below. The numbers beneath each
formula are the molar mass, M, (units of grams/mole) and the enthalpy of formation, AfH°, (units of
kilojoules/mole) of that substance.
4 CuFeS2(s) + 9 O2(8)
→ 2 Cu2S (s) +
2 Fez03(s)
+ 6 SO2(8)
M/g-mol-1
184
32.0
159
160
64.1
A¢H°(kJ/mol)
-197
-80.0
-824
-297

5. Which of the following is the correct K. expression for this reaction?
[2Cu2S] [2Fe,O3][6SO2]
[4CUFES2] [402]
[2Cu,sj? [2Fe,O3]² [6SO,j°
[4CuFeS2]* [9021°
А. К.
В. К.
[SO, 16
[Cu,s]² [Fe,O3 [SO,6
[CuFeS,1* [02
С. К.
. %3
D. K.
[02P

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