CHEM 1A03 Lecture Notes - Lecture 12: Lead(Ii) Nitrate, Nitrogen Fixation, Lead

• School: McMaster University
• Department: Chemistry
• Course: CHEM 1A03
• Professor: Lydia Chen

Document Summary

Unit 6 module 1&2&3 solubility and chemical equilibrium. 2. 2 2. 3 water: a vital natural resource. Water is a polar molecule: this property allows it to solvolyze ions like sodium. Allows transport across cellular membrane: plays a role in folding proteins b/c hydrophilic acid and hydrophobic amino acids interact. This causes particular arrangements that minimize unfavourable interactions and maximize favourable ones. Water can absorb, store and release large amounts of energy in the form of heat, which makes it a great insulator against temp. changes. P(cid:396)ope(cid:396)t(cid:455) that (cid:449)e(cid:859)ll fo(cid:272)us on in this unit is the ability to dissolve a variety of solutes: described sometimes as universal solvent. Result from extreme dipole moment within water. Va(cid:374) de(cid:396) waal(cid:859)s fo(cid:396)(cid:272)es (cid:373)a(cid:455) (cid:271)e (cid:272)olle(cid:272)ti(cid:448)el(cid:455) st(cid:396)o(cid:374)ge(cid:396) fo(cid:396) la(cid:396)ge pol(cid:455)(cid:373)e(cid:396)s. Water is unique because each water molecule is capable of forming 4 h-h bonds: two with its lone pairs and two with its h atoms.