BMB 207 Lecture 20: October 31
5 Nov 2016
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Document Summary
Base - electron donor hydrogen ion away from the other molecule. The products are a hydronium ion and a hydroxide ion. When two water molecules collide, one of the molecules occasionally pulls a. A hydrogen atom contains one proton and one electron, so the ion is simply a proton. The terms hydrogen ion and proton are used interchangeably. When combined with water acids transfer or donate a proton to a water molecule. Compound that form hydroxide ions when they dissolve in water are bases, water. This reaction produces equal numbers of hydronium and hydroxide ions so in pure. Water reversibly dissociates into hydrogen ions and hydroxide ions. Naoh(s) (h2o(cid:524) na (cid:523)aq(cid:524) + o( (cid:523)aq(cid:524) 2 h2o (l) (3o (aq) + oh (aq) In pure water the only source of both h3o and oh is the self-ionization of water. Hcl + h2o = h3o + cl water. H3o = oh may or may not be a reactant.
