I need help with the errors please.

Post by **answerhappygod** » Mon Nov 15, 2021 4:35 pm

: I Need Help With The Errors Please 1 (17.07 KiB) Viewed 53 times

: I Need Help With The Errors Please 2 (361.44 KiB) Viewed 53 times

Measure and record the absorbance for each sample in Lab Data • Place cuvette containing solution into spectrophotometer • Select Measure Sample • Remove cuvette from spectrophotometer and place in cuvette rack Calculate iron(III) thiocyanate complex ion concentration (in M) for each solution. Record in Lab Data

Calculate Equilibrium Constant Verify your equilibrium concentration calculation. Verify your average equilibrium constant calculation. Complete the following steps: Solution 1 Solution 2 Solution 3 Solution 4 Solution 5 Concentration iron(III) nitrate [Fe(NO3)31 (M) 0.00350 0.00350 0.00350 0.00350 0.00350 Calculate equilibrium constant for each solution. Record in Lab Data. Report to 3 significant figures Concentration potassium thiocyanate [KSCN) (M) 0.00350 0.00350 0.00350 0.00350 0.00350 Wash/ Waste Calculate average equilibrium constant. Record in Lab Data. Report to 3 significant figures Volume Fe(NO3)(mL) 5.00 5.00 5.00 5.00 5.00 Volume KSCN (mL) 5.00 4.00 3.00 2.00 1.00 Volume Dl water (mL) 0.00 1.00 2.00 3.00 4.00 Initial concentration [Fe3+1 (M) 0.00175 0.00175 0.00175 0.00175 0.00175 Initial concentration (SCN) (M) 0.00175 0.00140 0.00105 0.000700 0.000350 Absorbance 0.616 0.485 0.391 0.257 0.139 Equilibrium (FeSCN2+1 (M) 0.000485 0.000382 0.000308 0.000202 0.000109 Equilibrium constant Kc 267 262 288 283 312 w Average K