Video: Cov tshuaj ntxuav qhov cub puas yog cov kua qaub lossis cov hauv paus?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ntau ntxuav cov khoom, xws li xab npum thiab qhov cub ntxuav , yog hauv paus . Bases neutralize (tso tseg) kua qaub . Alkalis yog hauv paus uas yaj hauv dej. Qhov ntau hydroxide ions a puag muaj, lub zog nws yog.
Ntawm no, feem ntau cov tshuaj ntxuav cov kua qaub lossis cov hauv paus?
pH tuaj yeem yog koj tus phooj ywg lossis tus yeeb ncuab, nyob ntawm seb koj siv koj cov tshuaj ntxuav tes li cas. Thaum cov tshuaj tau yaj hauv dej, qhov sib xyaw ntawm pH tuaj yeem dhau los ua acidic lossis yooj yim (alkaline). Vinegar thiab kua txiv qaub yog acidic tshuaj, thaum ntxhua khaub ncaws thiab ammonia yog qhov yooj yim.
Qhov thib ob, vim li cas feem ntau cov tshuaj ntxuav tsev yog Basic? Feem ntau cov khoom siv tu (piv txwv li xab npum) yog cov ntsev ntawm cov tshuaj tiv thaiv ntawm lub hauv paus muaj zog thiab tsis muaj zog acid. Yog li cov khoom muaj yooj yim khoom. Lawv muaj cov roj carbon ntev ntev uas yog hydrophobic thiab lub taub hau hydrophilic, uas feem ntau Ntawm lub sijhawm muaj sodium lossis potassium ion.
Tsis tas li ntawd, qhov cub huv yog acidic?
Qhov cub huv : pH 11-13 Feem ntau qhov cub ntxuav tsuas yog alkaline raws li ammonia muab lawv lub zog loj los txiav cov roj thiab grime. Ntawm chav kawm, nyob rau sab saum toj ntawm alkaline nplai, kev saib xyuas hnyav yuav tsum tau ua thaum siv qhov cub ntxuav.
Dab tsi yog pH ntawm cov khoom ntxuav feem ntau?
Qhov ze nws tau mus rau 14, qhov siab dua qhov alkaline. Cov tshuaj ntxuav alkaline uas yuav muaj ib pH Qhov sib npaug ntawm 11.5 thiab 12. Pem teb strippers thiab cov zoo li yuav nyob ze rau 13, thiab corrosive caustic soda yuav nyob ntawm 14.
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%
Puas yog Hydronium yog cov kua qaub lossis lub hauv paus?
Hauv cov tshuaj acidic, hydronium yog qhov ua haujlwm ntau dua, nws cov proton ntau dhau tau yooj yim rau cov tshuaj tiv thaiv nrog hom kab mob. Hydronium ion yog acidic heev: ntawm 25 ° C, nws pKa yog kwv yees li 0