◄ 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