Vim cawv tsim hydrogen bonds nrog dej, lawv zoo li yuav soluble hauv dej. Cov pab pawg hydroxyl hu ua hydrophilic ("dej-hlub") pab pawg, vim tias nws tsim hydrogen bonds nrog dej thiab txhim kho cov solubility ntawm cawv hauv dej.
cawv nyob hauv dej li cas?
Tsuas yog tom qab ntawd cov molecule khiav tawm ntawm cov kua mus rau hauv lub xeev gaseous. Cawv kuj tuaj yeem koom nrog hydrogen bonding nrog dej molecules (Daim duab 10.1. 2). Yog li, whereas cov hydrocarbons yog insoluble nyob rau hauv dej, cawv nrog ib mus rau peb cov pa roj carbon atoms yog soluble kiag li
Vim li cas cawv thiaj yaj hauv dej thiab roj?
Thaum koj sim sib tov dej thiab roj los yog cawv thiab roj, lub polar molecules stick ua ke, ua kom cov roj molecules tsis tau ntawm lawv-thiab ob tsis sib tov. Thaum koj sim sib tov dej thiab cawv, lawv sib tov zoo, vim ob leeg yog ua los ntawm polar molecules.
Puas yog cawv cawv ntau dua soluble hauv dej?
Nqe Lus Nug: Cov cawv muaj qhov sib piv ntau dua hauv dej dua li cov hydrocarbons ntawm cov khoom sib piv molecular. Piav qhov tseeb no. Teb: Cov dej cawv muaj nyiam ua H-bonds nrog dej thiab rhuav tshem cov H-bonds uas twb muaj lawm ntawm cov dej molecules. Yog li ntawd, lawv soluble nyob rau hauv dej.
Yuav ua li cas ntau soluble hauv dej ethanol lossis methanol?
Kev xaiv 1 thiab 4 ob leeg muaj cov C-O daim ntawv cog lus uas ua rau lawv soluble hauv dej. Lo lus nug yog, qhov twg yog qhov ntau soluble? Los teb qhov ntawd, pom tias qhov tsis yog polar feem ntawm methanol yog me dua, yog li nws yuav ntau dua soluble.
