论文部分内容阅读
从前酸是指在水溶液中能进行电离而产生氢离子H~+的化合物,碱是指在水溶液中能进行电离而产生氢氧根离子OH~-的化合物。这是指用水作溶剂说的。但是后来发现不少其它液体也可用作溶剂。液态氨就是其中的一种,硝酸铵NH_4NO_3有酸的作用,氨基(化)钾KNH_2有碱的作用。这些化合物与类似的化合物,可用酚酞作指示剂而互相滴定,恰与硝酸HNO_3与氢氧化钾KOH 可用同种指示剂在水溶液中滴定相象。它
The former acid refers to a compound capable of ionizing in an aqueous solution to produce hydrogen ions H ~ +, and the base refers to a compound capable of ionizing in an aqueous solution to generate hydroxyl ions OH ~ -. This refers to the use of water as a solvent. However, it was later found that many other liquids were also used as solvents. Liquid ammonia is one of them. Ammonium nitrate NH_4NO_3 has the effect of acid. Amino potassium KNH_2 has the effect of alkali. These compounds and similar compounds, phenolphthalein can be used as an indicator of each other titration, just with nitric acid and potassium hydroxide KNO3 KOH KOH can be titrated with the same indicator in aqueous solution. it