[OH:1][P:2]([O-:5])([O-:4])=[O:3].[K+:6].[K+].[OH:8][P:9]([O-:12])([OH:11])=[O:10].[K+]>O>[OH:3][P:2]([O-:5])([O-:4])=[O:1].[K+:6].[K+:6].[OH:10][P:9]([O-:12])([OH:11])=[O:8].[K+:6]17.70 g (0.102 mole) of K2HPO4 and 2.30 g (0.0169 mole) of KH2PO4 were dissolved in water and brought to a total weight of 100 g. The resulting solution was diluted 1 to 5 with water to give a 4% (w/w) solution having a pH of 7.92.
Wird geladen…