2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Ib lub zog acid yuav ua tiav hauv dej thaum tsis muaj kua qaub tsuas yog qee qhov ionize.
Puas tsis muaj zog acids dissociate los yog ionize?
Tsis muaj Acids
Cov kua qaub muaj zog yog 100% ionized hauv cov tshuaj. Cov kua qaub tsis muaj zog tsuas yog me ntsis ionized. Phosphoric acid muaj zog dua acetic acid thiab yog li ionized rau ntau dua.
cov kua qaub tsis muaj zog ua dab tsi hauv dej?
Ib tug tsis muaj zog acid yog ib qho uas tsis ionize tag nrho thaum nws yaj hauv dej. Ethanoic acid yog ib qho tsis muaj zog acid. Nws reacts nrog dej los tsim hydroxonium ions thiab ethanoate ions, tab sis cov tshuaj tiv thaiv rov qab muaj kev vam meej dua li yav tom ntej. Cov ions tau yooj yim heev los hloov cov kua qaub thiab dej.
YPuas tsis muaj zog acids ionize ntawm pH siab?
Tsis zoo li cov acids muaj zog / cov hauv paus, tsis muaj zog acids thiab cov hauv paus tsis muaj zog tsis muaj kev sib cais (sib cais ua ions) ntawm qhov sib npaug hauv dej, yog li xam cov pH ntawm cov kev daws teeb meem no yuav tsum xav txog. Ib qho tshwj xeeb ionization tas li thiab qhov sib npaug ntawm qhov sib npaug.
Puas cov kua qaub tsis muaj zog nyob hauv dej?
Feem ntau ntawm cov molecules nyob rau hauv dej ntshiab nyob twj ywm zoo li H2O. Tib yam tuaj yeem hais txog tsis muaj zog acids. Thaum cov kua qaub tsis muaj zog yog yaj hauv dej, tsuas yog qee qhov ntawm cov kua qaub molecules tiag tiag dissociate (sib nrug), thaum lwm tus feem ntau nyob twj ywm.
Pom zoo:
Puas yog carbonic acid yog cov kua qaub uas muaj zog?
Hydrochloric acid (HCl) yog suav tias yog cov kua qaub uas muaj zog vim tias nws tsuas yog muaj nyob rau hauv daim ntawv ionized nkaus hauv lub cev, whereas carbonic acid (H 2CO 3 ) yog cov kua qaub tsis muaj zog vim nws yog ionized tsis tiav, thiab, ntawm qhov sib npaug, tag nrho peb cov reactants muaj nyob rau hauv lub cev kua.
Dab tsi ntawm cov hauv qab no yog cov kua qaub uas muaj zog tshaj chloroacetic acid?
Yog li, los ntawm cov kev xaiv tau muab, trichloroacetic acid yuav yog cov kua qaub uas muaj zog tshaj plaws vim tias muaj peb chlorine atoms tam sim no ntawm tib cov pa roj carbon uas yuav cuam tshuam cov nqi tsis zoo tshaj plaws thiab ua rau Qhov ruaj khov tshaj plaws carboxylate ion.
Puas muaj cov kua qaub uas muaj zog ionised hauv dej?
(siab dua) Cov kua qaub muaj zog ua tiav ionise hauv dej. Lawv rhuav tshem tag nrho los tsim kom muaj cov ntsiab lus siab ntawm hydrogen ions hauv cov tshuaj. Vim li cas cov kua qaub muaj zog ionize tag nrho hauv dej? Ib qho kua qaub lossis lub hauv paus lub zog hais txog nws qib ntawm ionization.
Vim li cas cov kua qaub tsis muaj zog ionize tsis tiav?
Cov kua qaub tsis muaj zog, zoo li cov kua qaub muaj zog, ionize kom tawm los H + ion thiab lub hauv paus conjugate. Vim HCl yog ib tug muaj zog acid, nws conjugate puag (Cl − ) yog qhov tsis muaj zog . Cov chloride ion tsis muaj peev xwm lees txais H +ion thiab dhau los ua HCl dua.
Puas yog sulfamic acid yog cov kua qaub muaj zog?
Sulfamic Acid yog a muaj zog acid (pKa=1.0) thiab dissociates tag nrho hauv cov tshuaj aqueous. Lub pH ntawm qhov sib npaug point qhov sib npaug Qhov sib npaug taw tes, los yog stoichiometric taw tes, ntawm cov tshuaj tiv thaiv tshuaj yog qhov taw tes ntawm cov tshuaj sib npaug ntawm cov tshuaj reactants tau tov.
