Video: Puas yog Hydronium yog cov kua qaub lossis lub hauv paus?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hauv acidic kev daws teeb meem, hydronium yog qhov ua haujlwm ntau dua, nws cov proton ntau dhau tau yooj yim rau cov tshuaj tiv thaiv nrog yooj yim hom. Cov hydronium ion yog heev acidic : ntawm 25 ° C, nws pKib yog kb0.
Ntawm no, yog h3o ib qho kua qaub los yog lub hauv paus?
Cov H3O+ yog conjugate kua qaub ntawm H2O. Yog li H3O+ yog siv raws li ib tug shorthand rau ib tug proton nyob rau hauv aqueous tov. Hauv cov tshuaj uas tsis yog-aqueous, proton yuav tsim cov qauv sib txawv. Qhia tau tias H2O yog tsim los ntawm qhov sib npaug H + thiab OH- ions thiab yog amphoteric (yuav ua tau ib qho acid los yog puag ) muaj daim ntawv deprotonated (OH-).
Qhov thib ob, yog Hydronium yog Lewis acid? Txawm tias cov hydronium ion yog lub npe Lewis acid Ntawm no, nws tsis yog nws tus kheej lees txais ib khub electron, tab sis tsuas yog ua raws li lub hauv paus ntawm proton uas ua haujlwm nrog cov Lewis puag.
Hauv qhov no, h3o+ puas muaj zog lossis qaug zog acid?
Tag nrho cov carboxylic kua qaub yog tsis muaj zog acids . Cov muaj zog acids yog HCl, HBr, HI, HNO3, HClO4, thiab thawj hydrogen ntawm H2SO4. Hauv muaj zog acids , cov [ H3O+ ] yog ze rau qhov sib npaug ntawm qhov concentration ntawm cov kua qaub . Hauv tsis muaj zog acids , cov [ H3O+ ] yog deb tsawg tshaj qhov concentration ntawm cov kua qaub.
pH ntawm h3o + yog dab tsi?
Qhov concentration ntawm hydronium ion tuaj yeem pom los ntawm cov pH los ntawm qhov thim rov qab ntawm kev ua lej ua haujlwm ua haujlwm kom pom cov pH . [ H3O+ ] = 10- pH los yog [ H3O+ ] = antilog (- pH ) Piv txwv: Dab tsi yog qhov hydronium ion concentration hauv cov tshuaj uas muaj a pH ua 8,34!
Pom zoo:
Koj puas ntxiv cov kua qaub rau hauv lub hauv paus lossis lub hauv paus rau cov kua qaub?
Ntxiv cov kua qaub ua kom cov concentration ntawm H3O + ions hauv cov tshuaj. Ntxiv ib lub hauv paus txo cov concentration ntawm H3O + ions hauv cov tshuaj. Cov kua qaub thiab lub hauv paus zoo li cov tshuaj tiv thaiv. Yog hais tias lub hauv paus yog ntxiv rau cov kua qaub, cov tshuaj yuav tsis acidic thiab txav mus rau nruab nrab ntawm pH nplai
Puas yog calcium cyanide yog cov kua qaub lossis lub hauv paus?
Calcium cyanide decomposes rau tsis tshua muaj tshuaj lom thiab flammable hydrogen cyanide thiab tshuaj lom thiab irritating nitrogen oxides thaum rhuab hauv hluav taws. QHOV 9. Lub cev thiab tshuaj lom neeg. Lub cev lub cev: Lub hauv paus ruaj khov: Reacts maj mam nrog dej los tsim calcium hydroxide, uas yog lub hauv paus muaj zog
Puas yog urea yog cov kua qaub lossis lub hauv paus?
Dissolved hauv dej, nws tsis yog acidic noralkaline. Lub cev siv nws nyob rau hauv ntau cov txheej txheem, tshwj xeeb tshaj yog nitrogen excretion. Lub siab tsim nws los ntawm kev sib txuas ob ammoniamolecules (NH3) nrog carbon dioxide (CO2) molecule nyob rau hauv lub voj voog urea
Puas yog sodium hydrosulfide yog cov kua qaub lossis lub hauv paus?
Ib tug chemical puag. Reacts nrog cov kua qaub kom tso cov nplaim hluav taws thiab cov pa phem gaseous hydrogen sulfide. Tsuav yog cov tshuaj khaws cia muaj zog alkaline, pH> 10, muaj tsawg heev tso H2S. Ntawm pH = 7, qhov feem pua ntawm H2S tso tawm yog ze rau 80%
Cov tshuaj ntxuav qhov cub puas yog cov kua qaub lossis cov hauv paus?
Ntau yam khoom siv tu, xws li xab npum thiab qhov cub ntxuav, yog cov hauv paus. Bases neutralize (tso tawm) acids. Alkalis yog cov hauv paus uas yaj hauv dej. Qhov ntau hydroxide ions ib lub hauv paus muaj, nws muaj zog dua