What is the concentration of iron, in ppm, of a solution prepared by dissolving 0.021 g of iron(II) sulfate in 6779 g of water?
+37084 FeSO4 has a molar mass of 151.908 g/mol
H2O has a molar mass of 18.01528 g/mol
(6779 g/18.01528 x 6.023 x 10^23 molecules of H2O)/(.021 g/151.908 x 6.023 x 10^23 molecules of FeSO4)
6779/18.01528 / .021/151.908 = 2,721,986.5 = 2.722 ppm
