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can you please just answer part (d) correctly and clearly. please show your workings! will give good rating :) ASAP

3) (30 marks] Standard aqueous solutions of FeCl2 are examined in a UV-Vis spectrometer. They yield the following absorbances at a given wavelength: 0 4 6 Concentration, mg ml- Absorbance 2 0.790 8 2.885 10 3.066 0.045 1.505 2.360 1 4 6 7 Blank sample number Absorbance 2 -0.02 3 -0.01 5 -0.02 0.03 0.02 0.03 -0.01 (a) Determine the unweighted least regression equation of the line and product-moment correlation coefficient, r, by processing the data in Excel. (b) Comment on the suitability of the linear regression fit to this data, providing evidence to support your opinion. (c) Assuming a linear correlation, calculate the concentration of a sample with an absorbance of 1.230. (d) Calculate the LOD and LOQ of FeCl2