CH 104 Lecture Notes - Lecture 9: Weak Base, Sodium Hydroxide, Respiratory Acidosis
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H2o + h2o h3o+ + oh- A strong acid, hcl, is completely dissociated into h3o+ and cl. A weak acid ch3cooh contains mostly undissociated acid. A strong base, naoh, is completely dissociated into na+ and oh. A weak base contains mostly undissociated base, nh3. Ch3cooh + h2o h3o+ + ch3coo- A base must contain a lone pair of electrons that can be used to form a new bond to the. This electron pair forms a new bond to a h from h2o. Kw = (1. 0 x 10-7)(1. 0x10-7) = 1 x 10-14 for pure water at 25 degrees c, [h3o+] = [oh-] = 1. 0 x 10-7. Buffers in the blood disease or failure body. A buffer is a solution whose ph changes very little when acid or base is added. Most buffers are solutions composed of roughly equal amounts of a weak acid and the. Added base, oh- reacts with the weak acid. Added acid, h3o+ reacts with the conjugate base.
