Prepareu Solutions, apsorbance, and calculateu [ren] Solution 1 Solution 2 Solution 3 Solution 4 Solution 5 0.00400 0.00

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: Prepareu Solutions Apsorbance And Calculateu Ren Solution 1 Solution 2 Solution 3 Solution 4 Solution 5 0 00400 0 00 1 (46.17 KiB) Viewed 97 times

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Prepareu Solutions, apsorbance, and calculateu [ren] Solution 1 Solution 2 Solution 3 Solution 4 Solution 5 0.00400 0.00400 0.00400 0.00400 0.00400 Concentration iron(III) nitrate [Fe(NO3)3] (M) Concentration potassium thiocyanate [KSCN) (M) Volume Fe(NO3)3 (mL) Volume KSCN (mL) 0.00400 0.00400 0.00400 0.00400 0.00400 5.00 5.00 5.00 5.00 5.00 5.00 4.00 3.00 2.00 1.00 Volume Dl water (mL) 0 1.00 2.00 3.00 4.00 0.00200 0.00200 0.00200 0.00200 0.00200 0.00200 0.00160 0.00120 0.000800 0.000400 Initial concentration (Fe3+1(M) Initial concentration (SCN) (M) Absorbance Equilibrium (FeSCN2+1 (M) Equilibrium constant Kc 0.784 0.587 0.474 0.369 0.165 0.000617 0.000462 0.000373 0.000291 0.000130
Stock solution Concentration iron(III) nitrate [Fe(NO3)31 (M) 0.40000 Color of iron(III) nitrate yellow Concentration potassium thiocyanate [KSCN) (M) 0.00300 Color of potassium thiocyanate colorless Volume iron(III) nitrate (mL) 10.00 Volume potassium thiocyanate (ml) 2.00 Volume Dl water (mL) 8.00 Concentration iron(III) thiocyanate ion in stock solution [FeSCN2+1 (M) 0.000300 Color of stock solution red-orange Diluted solutions
Diluted solutions Solution 1 Solution 2 Solution 3 4.00 4.00 4.00 Volume stock solution (mL) 1.00 2.00 3.00 Volume Di water (mL) w w 0.000200 0.000171 Concentration iron(III) thiocyanate ion [FeSCN2+1 (M) 0.000240 Calibration curve th Absorbance Solution Concentration iron(III) thiocyanate ion (FeSCN2+1 (M) Stock 0.000300 0.381 0.000240 0.305 Solution 1 0.254 Solution 2 0.000200 11 0.000171 0.217 Solution 3 Molar absorptivity (M-'cm') 1270 BELS +
Prepared solutions, absorbance, and calculated (FeSCN2+1 Solution 1 Solution 2 Solution 3 Solution 4 Solution 5 0.00400 0.00400 0.00400 0.00400 0.00400 Concentration iron(III) nitrate [Fe(NO3)31 (M) Concentration potassium thiocyanate (KSCN) (M) 0.00400 0.00400 0.00400 0.00400 0.00400 Volume Fe(NO3)3 (mL) 5.00 5.00 5.00 5.00 5.00 5.00 4.00 3.00 2.00 1.00 e 1.00 2.00 3.00 4.00 Volume KSCN (mL) Volume Di water (mL) Initial concentration [Fe3+] (M) Initial concentration (SCN) (M) 0.00200 0.00200 0.00200 0.00200 0.00200 0.00200 0.00160 0.00120 0.000800 0.000400 Absorbance 0.784 0.587 0.474 0.369 0.165 Equilibrium (FeSCN21 (M) 0.000617 0.000462 0.000373 0.000291 0.000130 BELS Equilibrium constant K.
ata Solution 1 Solution 2 - X Solution 5 Solution 3 Solution 4 PHASE 10: Calculate Equilibrium Constant 0.00400 0.00400 0.00400 0.00400 0.00400 Complete the following steps: Sentration iron(III) nitrate [Fe(NO3)3] (M) ration potassium thiocyanate [KSCN) (M) olume Fe(NO3)3 (mL) 1 0.00400 0.00400 0.00400 0.00400 0.00400 Calculate equilibrium constant for each solution. Record in Lab Data. Report to 3 significant figures 5.00 5.00 5.00 5.00 5.00 Wash/ Waste Volume KSCN (mL) 5.00 4.00 2 3.00 2.00 1.00 plume Dl water (mL) Calculate average equilibrium constant. Record in Lab Data. Report to 3 significant figures O 100 2.00 3.00 -4.00 0.00200 0.00200 0.00200 0.00200 0.00200 concentration [Fe3+1 (M) concentration (SCN) (M) 0.00200 0.00160 0.00120 0.000800 0.000400 Absorbance 0.784 0.587 0.474 0.369 0.165 0.000617 0.000462 0.000373 0.000291 0.000130 ibrium (FeSCN2+1 (M) ilibrium constant K.