A condensation reaction is a reaction in which two molecules combine to form a single molecule with the loss of a small molecule e.g water.
When two amino acids, such as alanine and glycine react, they yield a mixture of dipeptides (via dipeptide bond) and water. That is, The −OH from the carboxyl group (-COOH) of one amino acid combines with a hydrogen atom from the amine group (-NH2) of the other amino acid to produce water.
Realize that pH + pOH = 14 so, 9 + pOH = 14 -> pOH = 5 pOH = -log[OH-] 5 = -log[OH-] plug it into a calculator and you get 1.0 x 10^-5 alternatively, use [OH-] = 10^-pOH to get the same answer [OH-] = 1.0 x 10^-5
Condensation is the change of water from its gaseous form (water vapor) into liquid water. Condensation generally occurs in the atmosphere when warm air rises, cools and looses its capacity to hold water vapor. As a result, excess water vapor condenses to form cloud droplets.
