BIOL2000 Chapter Notes - Chapter 2: Formaldehyde, Acetaldehyde, Ribose
Document Summary
Chapter 2 water & carbon : the chemical basis of life. Learn how to make a chemical solution 15 points on the first. Moles, molecular weight, molarity mole = 6. 022 x 1023 molecular weight sum of all the mass numbers of all the atoms in a molecule, grams/mol molarity number of moles in an atom, mol. Solution chemistry solutions composed of solutes (dissolved) in solvents (liquid) ex. Mw nacl = mw na + mw cl. 2m/5m (. 25l) = . 1l add 100 mls of 5m nacl to 150 mls of water. Co2 + h2o = h2co3 (carbonic acid) hco3. + h+ (bicarbonate) as carbon dioxide goes into solution, carbonic acid is formed, which partially dissociates, liberating protons & thus causing the solution to become more acidic, lowering the ph. [h+] must be greater than 1m indicates a very, very concentrated acid not biologically relevant (battery acid)
