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Table 15.3 Composition of solutions for the determination of K. 0.00200 M Fe(NO3)3 (in 0.1 M HNO3) 0.00200 M NASCN (in 0.1 M HNO3) Solution 0.1 M HNO3 Blank 5.00 mL 0.00 mL 5.00 mL 5.00 mL 1.00 mL 4.00 mL 5.00 mL 2.00 mL 3.00 mL 5.00 mL 3.00 mL 2.00 mL 4 5.00 mL 4.00 mL 1.00 mL 5.00 mL 5.00 mL 0.00 mL Table 15.2 Absorbance at 447 nm of standard FeSCN2+ solutions Blank Standard 1 Standard 2 Standard 3 Standard 4 Standard 5 [FESCN2*] (M) 0.000000 0.000040 0.000080 0.000120 0.000160 0.000200 Absorbance 0.000 0.121 0.257 0.406 0.533 0.671

Table 15.3 Composition of solutions for the determination of K. 0.00200 M Fe(NO3)3 (in 0.1 M HNO3) 0.00200 M NASCN (in 0.1 M HNO3) Solution 0.1 M HNO3 Blank 5.00 mL 0.00 mL 5.00 mL 5.00 mL 1.00 mL 4.00 mL 5.00 mL 2.00 mL 3.00 mL 5.00 mL 3.00 mL 2.00 mL 4 5.00 mL 4.00 mL 1.00 mL 5.00 mL 5.00 mL 0.00 mL Table 15.2 Absorbance at 447 nm of standard FeSCN2+ solutions Blank Standard 1 Standard 2 Standard 3 Standard 4 Standard 5 [FESCN2*] (M) 0.000000 0.000040 0.000080 0.000120 0.000160 0.000200 Absorbance 0.000 0.121 0.257 0.406 0.533 0.671

Chemistry by OpenStax (2015-05-04)
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter15: Equilibria Of Other Reaction Classes
Section: Chapter Questions
Problem 18E: Explain why the changes in concentrations of the common ions in Exercise 15.17 can be neglected.
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What is the Molarity of [FeSCN2+] of Solution 2? 

  • Solution 2 has absorbance of 0.159 
  • Equation: Fe3+ (aq) + SCN- (aq) ⇌ FeSCN2+(aq)

The picture attached of Table 15.2 is an example of the table I am supposed to create. 

The picture attached of Table 15.3 is the composition of solutions for the determination of Kc.

Table 15.3 Composition of solutions for the determination of K. 0.00200 M Fe(NO3)3 (in 0.1 M HNO3) 0.00200 M NASCN (in 0.1 M HNO3) Solution 0.1 M HNO3 Blank 5.00 mL 0.00 mL 5.00 mL 5.00 mL 1.00 mL 4.00 mL 5.00 mL 2.00 mL 3.00 mL 5.00 mL 3.00 mL 2.00 mL 4 5.00 mL 4.00 mL 1.00 mL 5.00 mL 5.00 mL 0.00 mL
Transcribed Image Text:Table 15.3 Composition of solutions for the determination of K. 0.00200 M Fe(NO3)3 (in 0.1 M HNO3) 0.00200 M NASCN (in 0.1 M HNO3) Solution 0.1 M HNO3 Blank 5.00 mL 0.00 mL 5.00 mL 5.00 mL 1.00 mL 4.00 mL 5.00 mL 2.00 mL 3.00 mL 5.00 mL 3.00 mL 2.00 mL 4 5.00 mL 4.00 mL 1.00 mL 5.00 mL 5.00 mL 0.00 mL
Table 15.2 Absorbance at 447 nm of standard FeSCN2+ solutions Blank Standard 1 Standard 2 Standard 3 Standard 4 Standard 5 [FESCN2*] (M) 0.000000 0.000040 0.000080 0.000120 0.000160 0.000200 Absorbance 0.000 0.121 0.257 0.406 0.533 0.671
Transcribed Image Text:Table 15.2 Absorbance at 447 nm of standard FeSCN2+ solutions Blank Standard 1 Standard 2 Standard 3 Standard 4 Standard 5 [FESCN2*] (M) 0.000000 0.000040 0.000080 0.000120 0.000160 0.000200 Absorbance 0.000 0.121 0.257 0.406 0.533 0.671
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