Ib nag lossis daus tuaj yeem tshwm sim thaum ob cov kev daws teeb meem uas muaj cov ntsev sib txawv sib xyaw, thiab ib khub cation / anion hauv cov tshuaj sib xyaw ua ke ua cov ntsev tsis txaus; cov ntsev no ces los nag los ntawm kev daws.
Pob cations form precipitates?
Ib nag xob nag cua yuav tsim yog tias ib qho kev sib xyaw ntawm cations thiab anions tuaj yeem ua ib qho khoom.
Nyob rau hauv cov xwm txheej dab tsi yuav daim ntawv los nag?
Ntxhais nag los tshwm sim thaum cations thiab anions hauv aqueous tov ua kelos ua ib qho khoom tsis sib haum ionic hu ua precipitate. Txawm hais tias qhov kev tshwm sim tshwm sim los yog tsis tuaj yeem txiav txim siab los ntawm kev siv cov cai solubility rau cov ionic solids.
Koj paub li cas thaum daim ntawv nag los?
Ib qho tshuaj ionic yog thaum cov ions ntawm ib qho chaw sib cais hauv cov tshuaj aqueous. Ib qho tshuaj tiv thaiv tshwm sim thaum koj sib tov ob lub ntsiab lus aqueous. Qhov no yog thaum koj paub tias cov nag lossis daus yuav tsim los yog tsis. Daim ntawv precipitate yog cov khoom ntawm cov tshuaj tiv thaiv ntawm cov ions yog insoluble hauv dej
Ntawm qhov concentration npaum li cas yuav los nag?
a nag lossis daus yuav tsim thiab yuav tsim mus ntxiv kom txog rau thaum cov ntsiab lus ntawm ions hauv cov tshuaj txo qis mus rau qhov taw tes uas Qsp=Ksp thaum lub kaw lus sib npaug. yuav tsis muaj nag lossis daus. Piv txwv li: Yog tias sib npaug ntawm 0.010 M K2SO4 thiab 0.10 M Pb(NO3)2 cov kev daws teeb meem sib xyaw, puas yuav ua rau daim ntawv precipitate?
