[CHEM 002] - Midterm Exam Guide - Ultimate 26 pages long Study Guide!

• School: Georgetown University
• Department: Chemistry
• Course: CHEM-002
• Professor: Dedios Angel

Document Summary

The covalent bond keeps atoms in a molecule together these are intramolecular. The i(cid:374)ter(cid:373)ole(cid:272)ular for(cid:272)es that (cid:449)e"ll deal (cid:449)ith here are the i(cid:374)tera(cid:272)tio(cid:374)s (cid:271)et(cid:449)ee(cid:374) (cid:373)ole(cid:272)ules. The strength of the bond between the hydrogen and the chlorine is a very strong i(cid:374)tra(cid:373)ole(cid:272)ular attra(cid:272)tio(cid:374), (cid:271)ut (cid:449)e"re goi(cid:374)g to study the i(cid:374)ter(cid:373)ole(cid:272)ular attra(cid:272)tio(cid:374) (cid:271)et(cid:449)ee(cid:374) the h and cl on different molecules. The intermolecular attractions keep the substances in their condensed phase. Strongest attractions are in solids, weaker in liquids, weakest in gasses. The higher the boiling point, the stronger the intermolecular forces. Since hcl is gaseous at room temperature, we know its intermolecular attractions are not very strong. In covalent, metallic, and ionic bonds (diamond, beryllium, and lithium fluoride respectively), the (cid:449)hole thi(cid:374)g is o(cid:374)e (cid:373)ole(cid:272)ule so you (cid:272)a(cid:374)"t talk about intermolecular attractions. Ele(cid:272)tro(cid:374)s are al(cid:449)ays i(cid:374) (cid:373)otio(cid:374), (cid:271)ut (cid:449)e (cid:272)a(cid:374)"t tell (cid:449)here they are we have to settle with probability functions (the wave function).