1 025 g of FeNH42SO42 6H2O Quantitatively transfer the sampl

1.            0.25 g of Fe(NH₄)₂(SO₄)₂^. 6H₂O. Quantitatively transfer the sample to a 100 mL volumetric flask, add 1.4 mL of 3 M H₂SO₄, dilute to volume and mix thoroughly. Calculate the concentration of the solution in ppm Fe.<?xml:namespace prefix = o ns = \"urn:schemas-microsoft-com:office:office\" />

Solution

392.14088 gms of Fe(NH₄)₂(SO₄)₂^. 6H₂O contain 55.8gms

0.25 gms contain 0.0355gms of Fe

concentration=0.0355/101.4

=3.508*10^-4 grams/ml

in ppm=3.508*10^-4*10^6

=350.8ppm