Video: Dab tsi nkhaus titration qhia rau koj?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
A titration nkhaus yog cov phiaj xwm qhia pom kev hloov pauv hauv pH ntawm cov tshuaj hauv lub khob dej zoo li cov tshuaj reagent yog ntxiv los ntawm burette. A titration nkhaus tuaj yeem ua tau siv los txiav txim siab: 2) pH ntawm kev daws ntawm qhov sib npaug yog nyob ntawm qhov muaj zog ntawm cov kua qaub thiab lub zog ntawm lub hauv paus siv hauv titration.
Ntxiv mus, dab tsi yog qhov nkhaus titration qhia?
A titration nkhaus yog daim duab ntawd qhia ob qho tib si ntim ntawm cov tshuaj thiab pH ntawm cov tshuaj uas muaj cov tshuaj ntawd ntawm ob-seem axis. Qhov ntim tau sawv cev raws li qhov sib txawv ntawm kev ywj pheej, thaum pH yog qhov sib txawv ntawm qhov sib txawv.
Qhov thib ob, vim li cas cov titration curves qib qis? Cov nkhaus qhia tib yam sib xws li cov kua qaub tsis muaj zog titration qhov twg pH tsis hloov pauv ib ntus, nce thiab theem tawm dua. Qhov sib txawv tshwm sim thaum cov tshuaj tiv thaiv kab mob thib ob yog qhov chaw. Tib yam nkhaus tshwm sim dua qhov hloov pauv qeeb hauv pH yog ua raws li qhov spike thiab leveling tawm.
Hauv qhov no, dab tsi yog qhov zoo ntawm txoj kab nkhaus titration?
Titration ntawm ib qho kua qaub uas muaj zog puag los yog muaj zog puag nrog cov kua qaub muaj zog ua rau S-nkhaus nkhaus. Cov nkhaus yog me ntsis asymmetrical vim tias qhov nce ntxiv hauv qhov ntim ntawm cov tshuaj thaum lub sijhawm titration ua rau kev daws teeb meem ntau dua.
Cov mis rau titration yog dab tsi?
Siv cov titration mis . Yog tias tus neeg ua phem thiab tus neeg tshuaj xyuas muaj qhov sib piv 1: 1 mole, tus mis yog molarity (M) ntawm cov kua qaub x ntim (V) ntawm cov kua qaub = molarity (M) ntawm lub hauv paus x ntim (V) ntawm lub hauv paus. (Molarity yog qhov concentration ntawm cov tshuaj hais tawm raws li tus naj npawb ntawm moles ntawm solute ib liter ntawm kev daws.)
Pom zoo:
4 yam nkhaus nkhaus ntawm tus nqaj qaum yog dab tsi?
Cov pob txha no, hu ua vertebrae, tau muab faib ua tsib thaj chaw: ncauj tsev menyuam, thoracic, lumbar, sacral, thiab coccyx. Txawm hais tias tus nqaj qaum ua rau peb sawv ntsug ncaj, tus qauv yog dab tsi tab sis. Muaj tiag peb qhov nkhaus nkhaus ntawm tus nqaj qaum (plaub yog tias koj suav tus pob tw)
Yuav ua li cas koj xam concentration los ntawm ib tug titration nkhaus?
Faib tus naj npawb ntawm moles ntawm analyte tam sim no los ntawm thawj ntim ntawm tus analyte. Piv txwv, yog tias thawj qhov ntim ntawm qhov tshuaj ntsuam yog 500 mL, faib los ntawm 1000 mL rau L kom tau 0.5 L. Sib faib 0.01 moles ntawm kev tshuaj ntsuam los ntawm 0.5 L kom tau 0.02 moles ib litre. Qhov no yog qhov concentration lossis molarity
Lub hom phiaj ntawm cov kua qaub titration titration yog dab tsi?
Taw qhia. 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 kev daws teeb meem ntawm paub concentration, los yog vice versa, mus txog rau thaum neutralization tshwm sim
Dab tsi yog sigmoid nkhaus qhia?
Nyob rau hauv nws daim ntawv yooj yim tshaj plaws, lub sigmoid yog ib tug sawv cev ntawm lub sij hawm (nyob rau hauv kab rov tav axis) thiab kev ua si (nyob rau hauv ntsug axis). Qhov xav tsis thoob ntawm qhov nkhaus no yog qhov nws piav qhia ntau yam tshwm sim, tsis hais hom twg. Qhov tshwm sim ntsib kev loj hlob. Nws hits lub maturity theem qhov kev loj hlob qeeb, thiab ces nres
Dab tsi yog qhov sib npaug taw tes hauv qhov nkhaus titration?
(Nyob rau hauv ib qho acid-base titration, muaj 1: 1 acid: base stoichiometry, yog li qhov sib npaug taw tes yog qhov taw tes uas cov moles ntawm titrant ntxiv sib npaug rau cov moles ntawm cov khoom pib hauv cov tshuaj titrated.) Daim ntawv ceeb toom tias pH nce ntxiv. maj mam thaum xub thawj, ces sai li sai tau raws li nws ze rau qhov sib npaug point