Video: Yuav ua li cas kom acid muaj zog thiab dilute?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Concentrated thiab dilute xa mus rau qhov concentration ntawm ib acidic los yog cov khoom tseem ceeb hauv cov kuab tshuaj. 16 M HCl yog ntau concentrated tshaj 0.5 M daws ntawm tib yam kua qaub . Muaj zog thiab qaug zog xa mus rau lub peev xwm ntawm ib qho kua qaub los yog puag rau dissociate. A muaj zog acid yuav dissociate tag nrho hauv dej los tsim hydronium ions.
Ib yam li ntawd, nws raug nug, dab tsi ua rau cov kua qaub muaj zog lossis tsis muaj zog?
A qaug zog acid yog ib kua qaub uas ib nrab dissociates rau hauv nws ions nyob rau hauv ib tug aqueous tov los yog dej. Piv txwv li, a muaj zog acid tag nrho dissociates rau hauv nws cov ions hauv dej. Nyob rau tib lub concentration, tsis muaj zog acids muaj pH ntau dua muaj zog acids.
Tsis tas li ntawd, dab tsi yog dilute acid? A dilute acid yog hais tias nyob rau hauv uas cov concentration ntawm cov dej sib tov nyob rau hauv lub kua qaub yog siab tshaj qhov concentration ntawm cov kua qaub nws tus kheej. Piv txwv li, 5% sulfuric kua qaub yog a dilute acid.
Ib tug kuj yuav nug, qhov txawv ntawm ib tug qaug zog acid thiab ib tug dilute tov ntawm ib tug muaj zog acid?
TSIS TAU TXAIS - TSIS TAU TXAIS YOG LI AIDS QHOV CHAW UA HAUJ LWM HAUJ LWM HYDROGEN IONS thaum DISSOLVE IN Dej. DILUTE ACIDS - THAUM AIDS YOG DISSOLVE IN Dej IN RAWS LI NTAUB NTAWV NTAWM NO ACID COV AIDS YOG HU DILUTE ACIDS FOR EXAMPLE DILUTE HCL YOG IB TUG HLUB UA TSAUG DILUTE CARBONIC ACID.
Puas yog dilute HCl tsis muaj zog acid?
HCl yog ib tug muaj zog kua qaub , CH3COV is a qaug zog acid . Muaj zog thiab qaug zog acid xa mus rau cov degrees ntawm dissociation. HCl acid ionises tag nrho rau H+ thiab Cl- ions (uas yog, txog 100 tawm ntawm 100 molecules pub lawv cov hydrogen ion). Vim li no, dilute HCl acid muaj zog tshaj li cov concentrated acetic kua qaub.
Pom zoo:
Dab tsi yog qhov muaj zog thiab qaug zog acid piav nrog piv txwv?
Cov kua qaub muaj zog sib cais (sib cais) tag nrho hauv dej). Piv txwv li, HCl, cov kua qaub muaj zog yuav tawg mus rau H + thiab Cl-ions. Cov acids tsis muaj zog dissociate ib nrab hauv dej. Piv txwv li, HF, cov kua qaub tsis muaj zog, tsuas yog yuav muaj qee yam ntawm HF cov molecules sib cais thaum twg los tau
Txoj cai twg yog txhawm rau muab lub zog saib xyuas muaj zog ntxiv dag zog rau kev ua txhaum cai lij choj tiv thaiv kev ua phem thiab tiv thaiv kev lag luam nyiaj txiag?
COV PHOOJ YWG ACT TEEV NTUJ TEEB MEEM NTAWM TXOJ CAI TXOJ CAI TSHIAB
Yuav ua li cas tshwm sim thaum koj titrate ib tug muaj zog acid nrog ib tug muaj zog puag?
Lub hom phiaj ntawm lub zog acid-muaj zog hauv paus titration yog los txiav txim siab qhov concentration ntawm acidic tov los ntawm titrating nws nrog ib tug yooj yim tov ntawm paub concentration, los yog vice versa, kom txog thaum neutralization tshwm sim. Yog li ntawd, cov tshuaj tiv thaiv ntawm cov kua qaub thiab lub hauv paus muaj zog yuav ua rau dej thiab ntsev
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Vim li cas cov duab ntawm titration nkhaus txawv rau titration ntawm muaj zog acid vs muaj zog puag thiab qaug zog acid vs muaj zog puag?
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