Lub solubility ntawm cov organic molecules feem ntau sau los ntawm cov kab lus, "zoo li dissolves nyiam." Qhov no txhais tau hais tias molecules nrog ntau pawg polar muaj ntau dua soluble nyob rau hauv polar solvents, thiab molecules nrog ob peb los yog tsis muaj polar pawg (piv txwv li, nonpolar molecules) yog ntau soluble nyob rau hauv nonpolar solvents.
Vim li cas thiaj zoo li tawg zoo li muaj tseeb?
Txoj cai ntawm tus ntiv tes xoo yog "zoo li yaj zoo li". Polar / ionic solvents dissolve polar / ioniccov kuab tshuaj thiab cov kuab tshuaj uas tsis yog-polar dissolves tsis-polar solutes. Piv txwv li, dej yog cov kuab tshuaj polar thiab nws yuav yaj cov ntsev thiab lwm cov polar molecules, tab sis tsis yog polar molecules zoo li roj.
txhais li cas los ntawm kev nyiam yaj?
Chemists hais tias 'zoo li yaj zoo li,' lub ntsiab lus cov tshuaj uas muaj cov yam ntxwv zoo sib xws yuav yaj hauv ib leeg Tshwj xeeb, cov kuab tshuaj polar yuav yaj cov polar solutes, thiab tsis yog polar. Cov kuab tshuaj zoo li yaj uas tsis yog-polar solutes, thaum uas tsis yog-polar thiab polar tshuaj yog Immiscible (tsis txhob sib tov).
Vim li cas polar yaj polar?
Polar solvents yuav yaj polar thiab ionic solutes vim qhov kev nyiam ntawm cov nqi sib txawv ntawm cov kuab tshuaj thiab cov kuab tshuaj. Cov kuab tshuaj tsis-polar tsuas yog yaj cov kuab tshuaj uas tsis yog-polar vim lawv tsis tuaj yeem nyiam cov dipoles lossis cov ions.
Koj txhais li cas zoo li yaj zoo li piav nrog piv txwv?
"Zoo li dissolves" yog ib qho kev qhia siv los ntawm chemists kom nco ntsoov tias qee cov kuab tshuaj ua haujlwm li cas. Nws hais txog " polar" thiab "nonpolar" cov kuab tshuaj thiab cov kuab tshuaj piv txwv: Dej yog polar. … Zoo li yaj zoo li, qhov ntawd txhais tau tias polar dissolves polar, yog li dej dissolves ntsev.
