Plot of absorbance vs concentration for calibration curve. Data sheet stapled to back of DRA. Solution...
Calculate [Fe3+] and [SCN-] for each of the nine trials. Show the calculations for Sample 1 calibration curve is y=3967.7x-0.0822 the R^2 value is y=0.09959 Solution [SCN-1 2.06764 Stock solution B Absorbance Dilution 1 (50.0%) 1.0 xl-4 0.723 Dilution 2 (25.0%) S.Oxon Dilution 3 (12.5%) 2.5X2.5 (FeSCN2+). 2.0 X10" 1.0X10-4M 5.0x105m 2.5x105m 0.289 1o.lll 10.036 Calibration curve trendline equation Y 3967.7% -0.0823 R2 value of trendline R 0.99 se Sample Number 0.0020 M Fe(NO2), (ml) 0.0020 M KSCN (mL) 8...