Question

Prepare 200 ml solutions each of 0.1 M, 1.0 M, and 3.0 M HClO4. Concentrated (70%) HClO4 is 11.7 M. These will be used to elute the desired complexes.

Answer 1

For preparation of 200ml solution of 0.1M HClO4

Let the volume of concentrated HClO4 required be V ml

M1V1 = M2V2

(11.7)V = 0.1 * 200

V = 1.709 ml

Hence we need to 1.709 ml of Concentrated HCl with 198.29 ml of water

For preparation of 200ml solution of 1M HClO4

Let the volume of concentrated HClO4 required be V ml

M1V1 = M2V2

(11.7)V = 1 * 200

V = 17.09 ml

Hence we need to 17.09 ml of Concentrated HCl with 182.91 ml of water

For preparation of 200ml solution of 3M HClO4

Let the volume of concentrated HClO4 required be V ml

M1V1 = M2V2

(11.7)V = 3 * 200

V = 51.27 ml

Hence we need to 51.27 ml of Concentrated HCl with 148.73 ml of water