5. A 2.6540-g sample of an iron ore, known to be 53.51% w/w Fe, is dissolved in a small portion of concentrated HCl and diluted to volume in a 250-mL volumetric flask. A spectrophotometric determination of the concentration of Fe in this solution yields results of 5840, 5770, 5650, and 5660 ppm. Determine whether there is a significant difference between the experimental mean and the expected value at p = 0.05 level.
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In the meeting of the Gram Sabha so far what are the problems that are being discussed? What sort of solutions are being suggested?
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