Radioactive tracers provide a convenient mean of measuring

Last updated: 7/8/2022

Radioactive tracers provide a convenient mean of measuring the small concentration encountered in determining ksp values. Exactly 30 ml of 0.001M AgNO3 solution containing radioactive silver, with an activity of 40000 counts per ml was mixed with 10 ml of 0.002 M KIOS solution and the mixture is diluted to exactly 400 ml. After equilibrium was reached, a portion of sample was filtered to remove any solid and was found to have an activity of 2000 counts per ml. The ksp of AgIO3 is - 6x 10-10 1.25 x 10-9 6x 10-12 4 × 10-10