Lab 9 - Equilibrium and Le Châtelier's Principle

The coh2o62 ion is pale pink wwwwebassig

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: patterns on Delft china. The Co(H2O)62+ ion is pale pink. www.webassig encheml1/lab_9/manual.html 2/5 4/15/13 Lab 9 - Eq uilibr ium and Le Châtelier ' s Pr inciple You will be stressing these equilibria by adding products and reactants, and observing the color changes that result. * Complex ions are formed when metals (usually transition metals) or their ions form covalent bonds with molecules or ions that have electron pairs to donate. The electron donors, species such as H2O, NH3, and halide anions, are called ligands. The electrons are shared between vacant d orbitals (or hybrid orbitals formed from them) on the metal and nonbonding pairs on the ligand. There are usually vacant d orbitals in complex ions. Visible light promotes electrons into these orbitals. Thus, complex ions absorb visible light, and have intense and beautiful colors. Chapter 14 of your textbook has more information on the chemistry of transition metals. Equipment 2 30 mL beakers 1 100 mL beaker 1 ceramic spot plate 2 glass stir rods 1 hot plate 1 250 mL beaker for waste collection 1 deionized water squirt bott...
View Full Document

This document was uploaded on 01/22/2014.

Ask a homework question - tutors are online