其實dse Chem 我其實諗左好多postulates
但根本prove唔到 好似好9up
得閒問下我囉 識既教下你
見你有心讀醫
唔介意想問一問你
Eg.
Oxidation of primary alcohol to carbonxylic acid
過程中有機會出aldehyde, 教科書教用distillation
但我之前細心諗一諗,將solubility x idea of distillation cross諗諗
1. alcohol and carbonxylic acid should be more soluble than aldehyde if we consider the no of carbon in the main carbon skeleton is ~4-5
2. The condition of distillation is that the solution itself is miscible with each other
3. 應該aldehyde is not miscible with the aqueous solution
我就諗:
會唔會關
1. degree of solubility
2. Amount of aldehyde produced as compared with total amount of aq sol
-> Since the fresh amount of aldehyde produced in the course of oxidation is significantly small as compared to the total amount of aqueous sol
-> the amount of aldehyde produced is soluble at that moment
-> miscible with the sol
-> possible to extract by distillation
-> since there is a continuous heating
-> continuous extraction of aldehyde by distillation is possible