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
Question 5. Practice exam. Will post the answer, just need help with the concept so please explain. Thank you!
Transcribed Image Text:as
Answer Section
MULTIPLE CHOICE
ANS: E
2.
ANS: E
3.
ANS: B
4.
ANS: A
5. ANS: D
6. ANS: B
7. ANS: A
8. ANS: E
9.
ANS: B
10. ANS: D
11. ANS: B
1.
12. ANS: E
13. ANS: A
14.
ANS: A
15.
ANS: A
16.
ANS: D
17.
ANS: A
18.
ANS: E
19.
ANS: B
20. ANS: D
Transcribed Image Text:e. Roughly equal amounts of products and reactants will be present.
4. A 3.80 mol sample of HI is placed in a 1.00 L vessel at 460 °C, which is allowed to undergo decomposition
according to the equation 2HI(g) = H₂(g) +1₂(g). At equilibrium, there is 1.85 mol of 12(g) present in the flask.
What is the value of the equilibrium constant (Kc) for the reaction at 460 °C?
d. 34.23
a.
342.25
b. 0.24
c. 18.50
e.
4.22
5. For the reaction 2NO(g) + 3F₂ (g) = 2NOF 3 (g), 0.20 mol of NO(g) and 0.30 mol of F2(g) are added to an empty
1.0 L container. If x moles of NOF3(g) are present at equilibrium, how many moles of F2(g) are present at
equilibrium?
a. 0.30 - x
b. 0.30-2r
c. 0.06 0.20x d. 0.30-
e.
0.20-x
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