Video: Vim li cas thiaj xav tau ntau lub hauv paus los ua kom tsis muaj zog acid?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A qaug zog acid dissociates rau hauv H + thiab nws conjugate puag , uas tsim ib qho tsis. Qhov no resists hloov yog pH thiab yuav tsum tau ntau base rau neutralize nws. Ntxiv qaug zog acid rau dej tsis tsim ib qho tsis los ntawm nws tus kheej. Yog li nws tuaj yeem zoo li tus qaug zog acid xav tau ntau base , vim tias pH nce qeeb qeeb heev.
Yog li ntawd, yog vim li cas yuav ib tug muaj zog acid neutralize ntau npaum li ib tug qaug zog acid?
Acid - Puag Cov tshuaj tiv thaiv. Thaum twg kua qaub ib puag react lawv neutralize ib leeg. Muaj zog acids yuav neutralize muaj zog hauv paus ntawm qhov sib npaug ntawm qhov sib npaug ntawm qhov sib npaug. Ntau qhov ntim ntawm a qaug zog acid yog xav tau neutralize a lub hauv paus muaj zog yog tias cov concentrations sib npaug thiab sib piv rau tsis muaj zog hauv paus thiab muaj zog acids.
Ib yam li ntawd, pes tsawg lub hauv paus koj yuav tsum tau neutralize ib acid? Titrations. Thaum hydrochloric kua qaub yog reacted nrog sodium hydroxide, ib kua qaub / puag mole ratio ntawm 1: 1 yog xav tau rau tag nrho neutralization . Yog es tsis txhob hydrochloric kua qaub tau reacted nrog barium hydroxide, mole ratio yuav ua 2:1. Ob moles ntawm HCl yuav tsum tau kom tag neutralize ib tug mole ntawm Ba (OH)2.
Ib yam li ntawd, tib neeg nug, lub hauv paus muaj zog tuaj yeem ua rau cov kua qaub tsis muaj zog?
Thaum a muaj zog acid neutralizes ib tsis muaj zog puag , qhov kev daws teeb meem pH yuav yuav tsawg dua 7. Thaum a lub hauv paus muaj zog neutralizes ib qaug zog acid , qhov kev daws teeb meem pH yuav yuav ntau dua 7.
Koj ua li cas neutralize lub hauv paus tsis muaj zog?
Siv a qaug zog acid rau neutralize puag . Piv txwv xws li sodium hydroxide, potassium hydroxide, thiab ammonia. Muaj ntau yam khoom sib txawv pab hauv lub neutralization ntawm acids thiab hauv paus . Lawv tuaj yeem ua tau yooj yim li ib lub hnab ntawm citric acid lossis sodium sesquicarbonate, los yog ua haujlwm raws li cov khoom siv thiab cov khoom nruab nrab ua ke.
Pom zoo:
Puas muaj zog acid thiab qaug zog hauv paus ua rau tsis muaj?
Raws li koj tau pom hauv kev suav cov pH ntawm cov kev daws teeb meem, tsuas yog ib qho me me ntawm cov kua qaub uas muaj zog heev yog qhov tsim nyog los hloov pH. Ib qho tsis yog tsuas yog sib xyaw ntawm cov kua qaub tsis muaj zog thiab nws lub hauv paus conjugate lossis lub hauv paus tsis muaj zog thiab nws cov conjugate acid. Buffers ua hauj lwm los ntawm reacting nrog ib qho ntxiv acid los yog hauv paus tswj pH
Thaum twg muaj zog acid yog titrated nrog lub hauv paus tsis muaj zog?
Titration ntawm lub hauv paus tsis muaj zog nrog lub zog acid. Nyob rau hauv ib qho tsis muaj zog hauv paus-muaj zog acid titration, cov kua qaub thiab lub hauv paus yuav hnov mob los tsim cov kua qaub. Lub conjugate acid yuav raug tsim thaum lub sij hawm titration, uas tom qab ntawd reacts nrog dej los tsim hydronium ions. Qhov no ua rau muaj kev daws teeb meem nrog pH qis dua 7
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