香港巴士論壇

1. 我想問下列呢幾方面各種HOMOLOGOUS SERIES的比較同埋點解 (alkane, haloalkane, carboxylic acid, ester, amide, aldehyde, ketone, alcohol, amine)

DENSITY+LESS/DENSER THAN WATER;

SOLUBILITY IN WATER

MELTING AND BOILING POINTS

2.想問埋上面各種aldehyde 的density, solubility 同埋boiling/melting point 隨carbon number增加點變化....同埋原因

特別係點解haloalkanes, esters, amide, carboxylic acid的 density會愈黎愈低?

同埋點解carboxylic acid, haloalkanes等的melting point唔係隨carbon number增加?

3. CARBOXYLIC ACID 可以form dimer, 同density同埋melting point有無關?

4. 點解esters 的molecules之間無hydrogen bond?個o的lone pair唔可以同alkyl group 的H form架咩?