Question 17 (Ch.7) Consider the problem below: (Equation 1) 4 AlCl3 (s) + 2 Al(s) + 3 Cl2(g) ---> 3 Al2Cl6(g) ΔH = -1051 kJ/mol (Equation 2) 2 Al(s) + 6 Cl(g) ---> 2 AlCl3(s) ΔH = -705.6 kJ/mol (Equation 3) 12 Cl(g) ---> 6 Cl2(g) ΔH = 1460.4 kJ/mol (Equation 4) 6 Al(s) + 9 Cl2(g) ---> 3 Al2Cl6(g) ΔH = ??????? To find ΔH for equation 4 you must: a multiply equation 1 only b multiply equation 2 only c multiply equation 3 only d multiply equation 1 and equation 2 only e multiply equation 1 and equation 3 only f multiply equation 2 and equation 3 only g multiply all of the equations h multiply none of the equations
Question 17 (Ch.7) Consider the problem below: (Equation 1) 4 AlCl3 (s) + 2 Al(s) + 3 Cl2(g) ---> 3 Al2Cl6(g) ΔH = -1051 kJ/mol (Equation 2) 2 Al(s) + 6 Cl(g) ---> 2 AlCl3(s) ΔH = -705.6 kJ/mol (Equation 3) 12 Cl(g) ---> 6 Cl2(g) ΔH = 1460.4 kJ/mol (Equation 4) 6 Al(s) + 9 Cl2(g) ---> 3 Al2Cl6(g) ΔH = ??????? To find ΔH for equation 4 you must: a multiply equation 1 only b multiply equation 2 only c multiply equation 3 only d multiply equation 1 and equation 2 only e multiply equation 1 and equation 3 only f multiply equation 2 and equation 3 only g multiply all of the equations h multiply none of the equations
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 17 (Ch.7)
Consider the problem below:
(Equation 1) 4 AlCl3 (s) + 2 Al(s) + 3 Cl2(g) ---> 3 Al2Cl6(g) ΔH = -1051 kJ/mol
(Equation 2) 2 Al(s) + 6 Cl(g) ---> 2 AlCl3(s) ΔH = -705.6 kJ/mol
(Equation 3) 12 Cl(g) ---> 6 Cl2(g) ΔH = 1460.4 kJ/mol
(Equation 4) 6 Al(s) + 9 Cl2(g) ---> 3 Al2Cl6(g) ΔH = ???????
To find ΔH for equation 4 you must:
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a
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multiply equation 1 only
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|
b
|
multiply equation 2 only
|
|
c
|
multiply equation 3 only
|
|
d
|
multiply equation 1 and equation 2 only
|
|
e
|
multiply equation 1 and equation 3 only
|
|
f
|
multiply equation 2 and equation 3 only
|
|
g
|
multiply all of the equations
|
|
h
|
multiply none of the equations
|
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