硫酸钡在硫酸和硫酸钠溶液中的溶解度  

Solubility of Barium Sulfate in Sulfuric Acid and Sodium Sulfate Solutions

作　　者：傅海章 FU Hai-Zhang(Jiuquan Middle School,Jiuquan 735000,China)

机构地区：[1]甘肃省酒泉市酒泉中学,甘肃酒泉735000

出　　处：《化学教育（中英文）》2024年第1期107-110,共4页Chinese Journal of Chemical Education

摘　　要：计算BaSO_(4)在H_(2)SO_(4)溶液中的溶解度需要考虑H_(2)SO_(4)的第二步电离;计算BaCO_(3)在Na_(2)CO_(3)溶液中的溶解度需要考虑Na_(2)CO_(3)的水解。用离子活度计算难溶电解质在含有相同离子的强电解质溶液中的溶解度,既考虑了同离子效应又考虑了盐效应对溶解度的影响,使计算结果更为准确可靠,可避免产生一些错误认识。To calculate the solubility of barium sulfate in sulfuric acid solution,the second i-onization of sulfuric acid should be considered;The hydrolysis of sodium carbonate should be considered when calculating the solubility of barium carbonate in sodium carbonate solution.The solubility of insoluble electrolytes in strong electrolyte solutions containing the same ions is calcu-lated by using ion activity,both the same ion effect and the influence of salt effect on the solubili-ty are considered,which makes the calculation results more accurate and reliable and can avoid some misconceptions.

关 键 词：硫酸钡 硫酸钠 硫酸 碳酸钡 碳酸钠 溶解度 

分 类 号：G633.8[文化科学—教育学]