Answer to Question #132866 in Physical Chemistry for Habib U Rahman

Question

Prepare 500 ml of 1000ppm stock solution of Fe (Nh4)2 (So4)3.6h2O?

Answer 1

Molecular weight of Fe (NH₄)₂(SO₄)3.6H₂O = 330.86 gm

For 1000 ppm solution 500ml, you have to weigh out 500 mg i.e. 0.5gm of the solid and quantitatively transfer it in a 500 ml volumetric flask with a funnel and dissolve it first in 100 ml 2N H₂SO₄  and then make upto the mark with 2N H₂SO₄  .