在高中化学教学中 ,和氢氧化铝沉淀质量有关的计算题种类繁多 ,如能抓住反应实质总结运用简便公式求解 ,不仅可培养学生的学习热情 ,而且还可收到事半功倍的教学效果。一、公式推导过程中学化学教材里生成氢氧化铝沉淀的化学反应不少 ,主要是铝盐与强碱及偏铝酸盐与强酸的反应 In high school chemistry teaching, there are a wide variety of calculation questions related to the precipitation quality of aluminum hydroxide. If you can grasp the essence of the reaction and use a simple formula to solve the problem, not only can students develop enthusiasm for learning, but they can also receive more effective teaching results. First, the formulation of the process of high school chemistry textbooks in the chemical reaction of aluminum hydroxide precipitation reaction, mainly aluminum salt and alkali and aluminosilicate and strong acid reaction