CHM2046 Post-Lab Questions 1. 4.00 mL of 5.00 x 10³ M Fe(NO3)3 is added to 6.00 mL of 8.00 x 10³ M KSCN along with 4.00 mL of water. The concentration of [FeSCN2*] was found to be 3.00 x 10+ M at equilibrium. Show full working, including short descriptors of all numbers. For example, mol Fe³+= 5.00 x 10-³ M (conc Fe³+) x 4.00 mL (vol Fe³+) x (1 L/1000 ml) a) How many initial moles of Fe³+ are present in the solution? b) How many initial moles of SCN are present in the solution? c) How many initial moles of FeSCN2+ are present in the solution? d) How many equilibrium moles of Fe³+ are present in the solution? e) How many equilibrium moles of SCN are present in the solution? f) What are the equilibrium concentrations of Fe³+, SCN, and FeSCN²+? g) What is the value of Kc?
CHM2046 Post-Lab Questions 1. 4.00 mL of 5.00 x 10³ M Fe(NO3)3 is added to 6.00 mL of 8.00 x 10³ M KSCN along with 4.00 mL of water. The concentration of [FeSCN2*] was found to be 3.00 x 10+ M at equilibrium. Show full working, including short descriptors of all numbers. For example, mol Fe³+= 5.00 x 10-³ M (conc Fe³+) x 4.00 mL (vol Fe³+) x (1 L/1000 ml) a) How many initial moles of Fe³+ are present in the solution? b) How many initial moles of SCN are present in the solution? c) How many initial moles of FeSCN2+ are present in the solution? d) How many equilibrium moles of Fe³+ are present in the solution? e) How many equilibrium moles of SCN are present in the solution? f) What are the equilibrium concentrations of Fe³+, SCN, and FeSCN²+? g) What is the value of Kc?
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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![CHM2046
Post-Lab Questions
1. 4.00 mL of 5.00 x 10³ M Fe(NO3)3 is added to 6.00 mL of 8.00 x 10³ M KSCN along with 4.00
mL of water. The concentration of [FeSCN2*] was found to be 3.00 x 10+ M at equilibrium. Show
full working, including short descriptors of all numbers.
For example, mol Fe³+= 5.00 x 10-³ M (conc Fe³+) x 4.00 mL (vol Fe³+) x (1 L/1000 ml)
a) How many initial moles of Fe³+ are present in the solution?
b) How many initial moles of SCN are present in the solution?
c) How many initial moles of FeSCN²+ are present in the solution?
d) How many equilibrium moles of Fe³+ are present in the solution?
e) How many equilibrium moles of SCN are present in the solution?
f) What are the equilibrium concentrations of Fe³+, SCN, and FeSCN²+?
g) What is the value of Kc?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc2879e7b-b9eb-4caf-a2bf-32a860571f77%2F1e111c32-1c7e-49d9-b5fe-a39be0ef90b3%2F3eul9i_processed.jpeg&w=3840&q=75)
Transcribed Image Text:CHM2046
Post-Lab Questions
1. 4.00 mL of 5.00 x 10³ M Fe(NO3)3 is added to 6.00 mL of 8.00 x 10³ M KSCN along with 4.00
mL of water. The concentration of [FeSCN2*] was found to be 3.00 x 10+ M at equilibrium. Show
full working, including short descriptors of all numbers.
For example, mol Fe³+= 5.00 x 10-³ M (conc Fe³+) x 4.00 mL (vol Fe³+) x (1 L/1000 ml)
a) How many initial moles of Fe³+ are present in the solution?
b) How many initial moles of SCN are present in the solution?
c) How many initial moles of FeSCN²+ are present in the solution?
d) How many equilibrium moles of Fe³+ are present in the solution?
e) How many equilibrium moles of SCN are present in the solution?
f) What are the equilibrium concentrations of Fe³+, SCN, and FeSCN²+?
g) What is the value of Kc?
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