◄ Drive 9:56 YouTube 2)0 Star Group A…. and ou Determine an Equilibrium Constant Using Spectrophotometry Virtual Lab Lab Data Color of stock solution Diluted solutions - X red-orange 7 nm Solution 1 Solution 2 Solution 3 Volume stock solution (mL) 4.00 4.00 152 Volume DI water (mL) 1.00 3.00 ASURE SA Concentration iron(III) thiocyanate ion 0.000160 0.000133 0.000114 [FeSCN2*] (M) Calibration curve Solution Stock Solution 1 Concentration iron(III) thiocyanate ion [FeSCN2*] (M) 0.000200 0.000160 Determine an Equilibrium Constant Using Spectrophotometry Virtual Lab Absorbance. 0.272 ©2024 McGraw <> Lab Data - X 5.00 4.UU volume (ML) 5.00 200 1.00 Volume DI water (mL) 0.00 1.00 2.00 3.00 4.00 length 7 nm Initial concentration [Fe³] (M) 0.00100 0.00100 0.00100 0.00100 Initial concentration [SCN] (M) 0.00100 0.000800 0.000600 Absorbance 0.269 0.192 0.154 0.000400 0.104 0.00100 0.000200 ER WAVELENG bance 0.052 152 Equilibrium [FeSCN2] (M) 0.000212 0.000152 0.000122 0.0000821 0.000041 ASURE SAMP Equilibrium constant Ke Average K How to calculate iron() thiocyanate complex ion concentration for stock solution How to calculate initial concentrations of iron(III) ion and thiocyanate ion How to determine iron(II) thiocyanate complex ion concentration using absorbance Determine an Equilibrium Constant Using Spectrophotometry Virtual Lab CALIBRATED ©2024 McGraw Hil Lab Data - X Prepared solutions, absorbance, and calculated [FeSCN2+] Solution 1 Solution 2 Solution 3 Solution 4 7 nm Solution 5 ER WAVE Concentration iron(III) nitrate [Fe(NO3)3] (M) 0.00200 0.00200 0.00200 0.00200 0.00200 bance Concentration potassium thiocyanate [KSCN] (M) 152 0.00200 0.00200 0.00200 0.00200 0.00200 ASURE Volume Fe(NO3)3 (mL) 5.00 5.00 5.00 5.00 5.00 CALIBR Volume KSCN (mL) 5.00 4.00 3.00 2.00 1.00 Volume DI water (mL) 0.00 1.00 2.00 3.00 4.00 Initial concentration [Fe³] (M) 0.00100 0.00100 Initial concentration [SCN] (M) Absorbance 0.00100 0.269 0.00100 0.00100 0.000800 0.000600 0.000400 0.000200 0.00100 0.192 0.154 0.104 0.052 Equilibrium [FeSCN2] (M) 0.000212 0.000152 0.000122 0.0000821 0.000041 ©2024 McGra 9:56 ◄ Drive Prepared solutions, 7 nm Solution 1 Solution 2 Solution 3 Solution 4 Solution 5 ER WAVER Concentration iron(III) nitrate [Fe(NO3)3] (M) 0.00200 0.00200 0.00200 0.00200 0.00200 bance Concentration potassium thiocyanate 152 0.00200 0.00200 0.00200 0.00200 0.00200 [KSCN) (M) ASURE Volume Fe(NO3)3 (mL) 5.00 5.00 5.00 5.00 5.00 CALIBI Volume KSCN (mL) 5.00 4.00 3.00 2.00 1.00 Volume DI water (mL) 0.00 1.00 2.00 3.00 4.00 Initial concentration [Fe³*] (M) 0.00100 0.00100 0.00100 0.00100 0.00100 Initial concentration [SCN] (M) 0.00100 0.000800 0.000600 0.000400 0.000200 Absorbance 0.269 0.192 0.154 0.104 0.052 Equilibrium [FeSCN2] (M) 0.000212 0.000152 0.000122 0.0000821 0.000041 © 2024 McGra Lab Data Concentration iron(III) thiocyanate ion. [FeSCN2] (M) 0.000160 0.000133 0.000114 Calibration curve Solution Concentration iron(III) thiocyanate ion [FeSCN2] (M) Absorbance Stock Solution 1 Solution 2 Solution 3 0.000200 0.272 0.000160 0.000133 0.000114 0.217 0.181 0.155 Molar absorptivity (M1cm²¹) 1359 Prepared solutions, absorbance, and calculated [FeSCN2+] ab Data Concentration iron(III) nitrate [Fe(NO3)3] (M) Color of iron(III) nitrate Concentration potassium thiocyanate [KSCN] (M) Color of potassium thiocyanate Volume iron(III) nitrate (mL) Volume potassium thiocyanate (mL) Volume DI water (mL) Concentration iron(III) thiocyanate ion in stock solution [FeSCN2*] (M) Color of stock solution tod colutione Select All 0.20000 yellow 0.00200 colorless 10.00 2.00 8.00 0.000200 red-orange ©20

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
Incorrect is shown in red. Not sure how to calculate the equilibrium constant Kc
◄ Drive
9:56
YouTube 2)0 Star Group A…. and ou
Determine an Equilibrium Constant Using Spectrophotometry Virtual Lab
Lab Data
Color of stock solution
Diluted solutions
- X
red-orange
7 nm
Solution 1
Solution 2
Solution 3
Volume stock solution (mL)
4.00
4.00
152
Volume DI water (mL)
1.00
3.00
ASURE SA
Concentration iron(III) thiocyanate ion
0.000160
0.000133
0.000114
[FeSCN2*] (M)
Calibration curve
Solution
Stock
Solution 1
Concentration iron(III) thiocyanate ion
[FeSCN2*] (M)
0.000200
0.000160
Determine an Equilibrium Constant Using Spectrophotometry Virtual Lab
Absorbance.
0.272
©2024 McGraw
<>
Lab Data
- X
5.00
4.UU
volume (ML)
5.00
200
1.00
Volume DI water (mL)
0.00
1.00
2.00
3.00
4.00
length
7 nm
Initial concentration [Fe³] (M)
0.00100
0.00100
0.00100
0.00100
Initial concentration [SCN] (M)
0.00100
0.000800
0.000600
Absorbance
0.269
0.192
0.154
0.000400
0.104
0.00100
0.000200
ER WAVELENG
bance
0.052
152
Equilibrium [FeSCN2] (M)
0.000212
0.000152
0.000122
0.0000821 0.000041
ASURE SAMP
Equilibrium constant Ke
Average K
How to calculate iron() thiocyanate complex ion concentration for stock solution
How to calculate initial concentrations of iron(III) ion and thiocyanate ion
How to determine iron(II) thiocyanate complex ion concentration using absorbance
Determine an Equilibrium Constant Using Spectrophotometry Virtual Lab
CALIBRATED
©2024 McGraw Hil
Lab Data
- X
Prepared solutions, absorbance, and calculated [FeSCN2+]
Solution 1 Solution 2
Solution 3
Solution 4
7 nm
Solution 5
ER WAVE
Concentration iron(III) nitrate
[Fe(NO3)3] (M)
0.00200
0.00200
0.00200
0.00200
0.00200
bance
Concentration potassium thiocyanate
[KSCN] (M)
152
0.00200
0.00200
0.00200
0.00200 0.00200
ASURE
Volume Fe(NO3)3 (mL)
5.00
5.00
5.00
5.00
5.00
CALIBR
Volume KSCN (mL)
5.00
4.00
3.00
2.00
1.00
Volume DI water (mL)
0.00
1.00
2.00
3.00
4.00
Initial concentration [Fe³] (M)
0.00100
0.00100
Initial concentration [SCN] (M)
Absorbance
0.00100
0.269
0.00100
0.00100
0.000800 0.000600 0.000400 0.000200
0.00100
0.192
0.154
0.104
0.052
Equilibrium [FeSCN2] (M)
0.000212
0.000152 0.000122 0.0000821 0.000041
©2024 McGra
Transcribed Image Text:◄ Drive 9:56 YouTube 2)0 Star Group A…. and ou Determine an Equilibrium Constant Using Spectrophotometry Virtual Lab Lab Data Color of stock solution Diluted solutions - X red-orange 7 nm Solution 1 Solution 2 Solution 3 Volume stock solution (mL) 4.00 4.00 152 Volume DI water (mL) 1.00 3.00 ASURE SA Concentration iron(III) thiocyanate ion 0.000160 0.000133 0.000114 [FeSCN2*] (M) Calibration curve Solution Stock Solution 1 Concentration iron(III) thiocyanate ion [FeSCN2*] (M) 0.000200 0.000160 Determine an Equilibrium Constant Using Spectrophotometry Virtual Lab Absorbance. 0.272 ©2024 McGraw <> Lab Data - X 5.00 4.UU volume (ML) 5.00 200 1.00 Volume DI water (mL) 0.00 1.00 2.00 3.00 4.00 length 7 nm Initial concentration [Fe³] (M) 0.00100 0.00100 0.00100 0.00100 Initial concentration [SCN] (M) 0.00100 0.000800 0.000600 Absorbance 0.269 0.192 0.154 0.000400 0.104 0.00100 0.000200 ER WAVELENG bance 0.052 152 Equilibrium [FeSCN2] (M) 0.000212 0.000152 0.000122 0.0000821 0.000041 ASURE SAMP Equilibrium constant Ke Average K How to calculate iron() thiocyanate complex ion concentration for stock solution How to calculate initial concentrations of iron(III) ion and thiocyanate ion How to determine iron(II) thiocyanate complex ion concentration using absorbance Determine an Equilibrium Constant Using Spectrophotometry Virtual Lab CALIBRATED ©2024 McGraw Hil Lab Data - X Prepared solutions, absorbance, and calculated [FeSCN2+] Solution 1 Solution 2 Solution 3 Solution 4 7 nm Solution 5 ER WAVE Concentration iron(III) nitrate [Fe(NO3)3] (M) 0.00200 0.00200 0.00200 0.00200 0.00200 bance Concentration potassium thiocyanate [KSCN] (M) 152 0.00200 0.00200 0.00200 0.00200 0.00200 ASURE Volume Fe(NO3)3 (mL) 5.00 5.00 5.00 5.00 5.00 CALIBR Volume KSCN (mL) 5.00 4.00 3.00 2.00 1.00 Volume DI water (mL) 0.00 1.00 2.00 3.00 4.00 Initial concentration [Fe³] (M) 0.00100 0.00100 Initial concentration [SCN] (M) Absorbance 0.00100 0.269 0.00100 0.00100 0.000800 0.000600 0.000400 0.000200 0.00100 0.192 0.154 0.104 0.052 Equilibrium [FeSCN2] (M) 0.000212 0.000152 0.000122 0.0000821 0.000041 ©2024 McGra
9:56
◄ Drive
Prepared solutions,
7 nm
Solution 1
Solution 2
Solution 3 Solution 4
Solution 5
ER WAVER
Concentration iron(III) nitrate
[Fe(NO3)3] (M)
0.00200
0.00200
0.00200
0.00200
0.00200
bance
Concentration potassium thiocyanate
152
0.00200
0.00200
0.00200
0.00200
0.00200
[KSCN) (M)
ASURE
Volume Fe(NO3)3 (mL)
5.00
5.00
5.00
5.00
5.00
CALIBI
Volume KSCN (mL)
5.00
4.00
3.00
2.00
1.00
Volume DI water (mL)
0.00
1.00
2.00
3.00
4.00
Initial concentration [Fe³*] (M)
0.00100
0.00100
0.00100
0.00100
0.00100
Initial concentration [SCN] (M)
0.00100
0.000800
0.000600
0.000400 0.000200
Absorbance
0.269
0.192
0.154
0.104
0.052
Equilibrium [FeSCN2] (M)
0.000212
0.000152
0.000122 0.0000821
0.000041
© 2024 McGra
Lab Data
Concentration iron(III) thiocyanate ion.
[FeSCN2] (M)
0.000160
0.000133
0.000114
Calibration curve
Solution
Concentration iron(III) thiocyanate ion
[FeSCN2] (M)
Absorbance
Stock
Solution 1
Solution 2
Solution 3
0.000200
0.272
0.000160
0.000133
0.000114
0.217
0.181
0.155
Molar absorptivity (M1cm²¹)
1359
Prepared solutions, absorbance, and calculated [FeSCN2+]
ab Data
Concentration iron(III) nitrate
[Fe(NO3)3] (M)
Color of iron(III) nitrate
Concentration potassium thiocyanate
[KSCN] (M)
Color of potassium thiocyanate
Volume iron(III) nitrate (mL)
Volume potassium thiocyanate (mL)
Volume DI water (mL)
Concentration iron(III) thiocyanate ion in stock solution
[FeSCN2*] (M)
Color of stock solution
tod colutione
Select All
0.20000
yellow
0.00200
colorless
10.00
2.00
8.00
0.000200
red-orange
©20
Transcribed Image Text:9:56 ◄ Drive Prepared solutions, 7 nm Solution 1 Solution 2 Solution 3 Solution 4 Solution 5 ER WAVER Concentration iron(III) nitrate [Fe(NO3)3] (M) 0.00200 0.00200 0.00200 0.00200 0.00200 bance Concentration potassium thiocyanate 152 0.00200 0.00200 0.00200 0.00200 0.00200 [KSCN) (M) ASURE Volume Fe(NO3)3 (mL) 5.00 5.00 5.00 5.00 5.00 CALIBI Volume KSCN (mL) 5.00 4.00 3.00 2.00 1.00 Volume DI water (mL) 0.00 1.00 2.00 3.00 4.00 Initial concentration [Fe³*] (M) 0.00100 0.00100 0.00100 0.00100 0.00100 Initial concentration [SCN] (M) 0.00100 0.000800 0.000600 0.000400 0.000200 Absorbance 0.269 0.192 0.154 0.104 0.052 Equilibrium [FeSCN2] (M) 0.000212 0.000152 0.000122 0.0000821 0.000041 © 2024 McGra Lab Data Concentration iron(III) thiocyanate ion. [FeSCN2] (M) 0.000160 0.000133 0.000114 Calibration curve Solution Concentration iron(III) thiocyanate ion [FeSCN2] (M) Absorbance Stock Solution 1 Solution 2 Solution 3 0.000200 0.272 0.000160 0.000133 0.000114 0.217 0.181 0.155 Molar absorptivity (M1cm²¹) 1359 Prepared solutions, absorbance, and calculated [FeSCN2+] ab Data Concentration iron(III) nitrate [Fe(NO3)3] (M) Color of iron(III) nitrate Concentration potassium thiocyanate [KSCN] (M) Color of potassium thiocyanate Volume iron(III) nitrate (mL) Volume potassium thiocyanate (mL) Volume DI water (mL) Concentration iron(III) thiocyanate ion in stock solution [FeSCN2*] (M) Color of stock solution tod colutione Select All 0.20000 yellow 0.00200 colorless 10.00 2.00 8.00 0.000200 red-orange ©20
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