We have determined the solubilities of m-nitrobenzoic acid in aqueous solutions of LiCl, LiBr, NaCl, NaBr, KCl, KBr, SrCl2, and BaCl2 （from Cs = 0 to Cs = 1n） at 15°, 25°, 35°, and 45℃ （in the case ...We have determined the solubilities of m-nitrobenzoic acid in aqueous solutions of LiCl, LiBr, NaCl, NaBr, KCl, KBr, SrCl2, and BaCl2 （from Cs = 0 to Cs = 1n） at 15°, 25°, 35°, and 45℃ （in the case of KBr an additional temperature of 30°）. Using Briegelb and Bieber’s expression of dissociation constant （as a function of temperature） of HA （hereafter HA denotes m-nitrobenzoic acid） and Guntelberg’s approximate expression of activity coefficient, we calculate the hydrogen ion concentration of HA in pure water. For the calculation of mH+ of HA in salt solution, we assume with Randall and Failey that the activity coefficients of HA in the eight halide solutions are the same as those of the corresponding 0.01 m展开更多
文摘We have determined the solubilities of m-nitrobenzoic acid in aqueous solutions of LiCl, LiBr, NaCl, NaBr, KCl, KBr, SrCl2, and BaCl2 （from Cs = 0 to Cs = 1n） at 15°, 25°, 35°, and 45℃ （in the case of KBr an additional temperature of 30°）. Using Briegelb and Bieber’s expression of dissociation constant （as a function of temperature） of HA （hereafter HA denotes m-nitrobenzoic acid） and Guntelberg’s approximate expression of activity coefficient, we calculate the hydrogen ion concentration of HA in pure water. For the calculation of mH+ of HA in salt solution, we assume with Randall and Failey that the activity coefficients of HA in the eight halide solutions are the same as those of the corresponding 0.01 m
