procedure in Table 4.1. Use the concentration of KSCN, volume of KSCN and total final volume of each solution (each standard solution will be 20.00 mL) to calculate the FeSCN²+ concentration in each of the four standard solutions.

Chemistry for Engineering Students
4th Edition
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Publisher:Lawrence S. Brown, Tom Holme
Chapter4: Stoichiometry
Section: Chapter Questions
Problem 4.98PAE
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Because the limiting reactant in this case will be SCN- (from KSCN), the moles of
SCN- in solution will determine the moles (and concentration) of FeSCN²+ in each
standard solution. Concentrations and volumes are provided in the experiment
procedure in Table 4.1. Use the concentration of KSCN, volume of KSCN and
total final volume of each solution (each standard solution will be 20.00 mL) to calculate
the FeSCN²+ concentration in each of the four standard solutions.
Fe³+
(aq)
iron(III)
1
2
3
4
+
SCN- (aq)
thiocyanate
FeSCN²+ concentration in Standard Solution 4
=
5.00
5.00
FeSCN²+ (aq)
thiocyanoiron(III)
TABLE 4.1. Volumes for the Part A standard solutions for the Beer's Law Plot.
Solution
Volume of
Volume of
0.200 M Fe(NO3)3 (ML)
0.00200 M KSCN (mL)
5.00
2.00
5.00
1.50
1.00
0.50
Reaction 1
Volume of Deionized
Water (ml)
13.00
13.50
14.00
14.50
Transcribed Image Text:Because the limiting reactant in this case will be SCN- (from KSCN), the moles of SCN- in solution will determine the moles (and concentration) of FeSCN²+ in each standard solution. Concentrations and volumes are provided in the experiment procedure in Table 4.1. Use the concentration of KSCN, volume of KSCN and total final volume of each solution (each standard solution will be 20.00 mL) to calculate the FeSCN²+ concentration in each of the four standard solutions. Fe³+ (aq) iron(III) 1 2 3 4 + SCN- (aq) thiocyanate FeSCN²+ concentration in Standard Solution 4 = 5.00 5.00 FeSCN²+ (aq) thiocyanoiron(III) TABLE 4.1. Volumes for the Part A standard solutions for the Beer's Law Plot. Solution Volume of Volume of 0.200 M Fe(NO3)3 (ML) 0.00200 M KSCN (mL) 5.00 2.00 5.00 1.50 1.00 0.50 Reaction 1 Volume of Deionized Water (ml) 13.00 13.50 14.00 14.50
Expert Solution
Step 1 Given data

Molarity of Fe(NO3)3 = 0.200 M

Molarity of KSCN = 0.00200 M

It is desired to calculate concentration of FeSCN2+ in all tubes.

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