Chemistry 15 (https://bspace.berkeley.edu/portal)Lecture 7February 13, 2008Reading assignment: Chapter: 14 Activities of Ions in Solutions of Electrolytes a)Electrostatic interactions between ions: •ionic atmospheres: ions attract counter-ions by electrostatic forces •electrostaticshielding effect: the effective charge of an ion is smaller than its nominal charge due to its electrostatic interactions with other ions •The extent of electrostatic screening depends on the ion's charge, its ionic radius, and on the ionic strength. It becomes significant when ionic strength approaches and exceeds 1 mM level.
This is the end of the preview. Sign up
access the rest of the document.