有关混和物计算的解题技巧

• 作 者: 曹云健
• 机 构: 北京市四十三中,
• 出 处: 中学化学教学参考
• 发表日期: 1987年06期
• 关键词: 混和物 摩尔浓度 解题技巧 化学计算 沉淀过滤 高考题 铁粉 代数法 已知条件 中含

有关混和物的计算在化学计算中占有重重地位。这类题目有利于培养同学分析问题、解决问题的能力,并在生产实践与实验室中都有重要的应用。由于有关混和物的计算可以考查学生综合运用化学知识的能力,所以在历年高考题中,这类题目经常出现。一般来说,这类题目常用代数法求解。在解题过程中应注意以下几个问题。

The calculation of the mixture occupies an important position in the chemical calculation. Such topics are conducive to students’ ability to analyze problems and solve problems, and have important applications in production practices and laboratories. Because the calculation of the mixture can examine the students’ ability to use chemical knowledge comprehensively, such topics often appear in the college entrance examination questions over the years. In general, this type of problem is commonly solved by algebraic methods. The following questions should be noted in the process of solving problems.