using the least squares parameters fom th calibration curve, report the number o

Question

using the least squares parameters fom th calibration curve, report the number of milligrams of fe in the tablet from the replicate results, estimate the standard deviation of the method. Fe=7.40*10^(-4) Standards: 1:5ml of fe 12 drops of citrate 2 ml of hydro quinine 1 ml of o-phenanthroline absorbance at 0.305 2: 2ml of fe 6 drops of citrate 2 ml of hydro quinine 1 ml of o-phenanthroline absorbance at 0.142 3: 1 ml of fe 3 drops of citrate 2 ml of hydro quinine 1 ml of o-phenanthroline absorbance at 0.056 4: 10 ml of fe 25 drops of citrate 2 ml of hydro quinine 1 ml of o-phenanthroline absorbance at 0.811 5: absorbance with no fe at 0.001 Unknown of tablets 1: absorbance of 0.257 2: absorbance of 0.297 3: absorbance of 0.240

Explanation / Answer

FOLLOW THIS see the Pearson's chi square test

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