2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Titrant thiab tshuaj ntsuam yog pair ntawm acid thiab base. … Titrant: kev daws ntawm ib tug paub concentration, uas yog ntxiv rau lwm cov tshuaj uas nws concentration yuav tsum tau txiav txim. Titrand lossis tshuaj ntsuam xyuas: cov tshuaj uas nws cov concentration yuav tsum tau txiav txim siab.
Tus kws tshuaj ntsuam puas tuaj yeem nyob hauv buret?
Tus tsis paub cov khoom (tus tshuaj ntsuam) may lossis yuav tsis yaj hauv cov tshuaj (tab sis feem ntau yog). Lub titrant yog ntxiv rau qhov kev tshuaj ntsuam xyuas uas siv lub raj xa hluav taws xob uas muaj lub suab nrov hu ua burette (tseem spelled buret; saib daim duab 12.4. 1). … Hom kev suav no yog ua ib feem ntawm titration.
Dab tsi yog qhov kev ntsuas ntsuas ntsuas?
Nyob rau hauv titration, ib qho kev tshuaj ntsuam -cov khoom uas nws qhov ntau lossis qhov concentration yuav raug txiav txim siab - yog hnov mob nrog kev tswj xyuas kom zoo ntawm kev daws qhov tseeb-paub concentration hu ua kev daws teeb meem.
Yuav ua li cas thiaj nrhiav tau cov tshuaj ntsuam xyuas thiab titrant?
Siv tus qauv titration. Yog hais tias tus titrant thiab analyte muaj ib tug 1: 1 mole piv, lub mis yog molarity (M) ntawm cov kua qaub x ntim (V) ntawm cov kua qaub=molarity (M) ntawm lub hauv paus x. volume (V) ntawm lub hauv paus. (Molarity yog qhov concentration ntawm cov tshuaj qhia raws li tus naj npawb ntawm moles ntawm solute ib liter ntawm tov.)
Dab tsi yog tshuaj titrant?
Nyob rau hauv analytical chemistry, lub titrant yog ib qho kev daws teeb meem uas paub tias yog ntxiv (titrated) rau lwm cov tshuaj rautxiav txim siab qhov concentration ntawm ib hom tshuaj thib ob. Lub titrant kuj tseem hu ua titrator, reagent, lossis cov qauv tshuaj.
Pom zoo:
Tus kws kos duab twg yog tus kws sau paj huam thiab tus kws kos duab?
Rossetti's contemporary, Charles Lutwidge Dodgson (feem ntau paub los ntawm nws lub npe Lewis Carroll) kuj tau siv cov duab kos duab thiab paj huam ua tsheb rau kev qhia. Nws txoj haujlwm ua tus kws sau ntawv, kws sau paj huam, thiab tus kws kos duab qhia txog nws txoj kev xav tob hauv kev npau suav thiab cov menyuam yaus zaj dab neeg.
Tus kws kho mob puas tuaj yeem ua haujlwm ua tus kws kho mob phlebotomist?
Thaum cov kws pab kho mob thiab phlebotomists yog ob txoj haujlwm sib txawv, tus kws kho mob tuaj yeem dhau los ua phlebotomist thiab rov ua dua, tsuav yog lawv tau ua tiav qhov kev cob qhia uas xav tau. Kev cob qhia kws kho mob feem ntau ntev dua li kev cob qhia phlebotomy.
Tus neeg puas tuaj yeem yog tus kws kho mob?
A tus neeg lossis tus cwj pwm uas nws tus cwj pwm yuav kwv yees lossis pom tseeb. Ib qho kev qhia lossis lub tswv yim uas tau dhau los ua tsis ncaj. Lub ntsiab txhais ntawm ib tug cliché yog ib qho uas feem ntau rov hais dua los yog siv kab lus los yog nqe lus uas tau siv ntau heev nws tau dhau los ua trite thiab hom tsis muaj qab hau.
Thaum tshuaj ntsuam ntshav cov kws tshuaj ntsuam thawj zaug txiav txim siab?
Thaum txheeb xyuas cov ntshav, cov kws tshuaj ntsuam thawj zaug txiav txim siab [a] los ntawm tshuaj xyuas qhov nqaim kawg ntawm cov ntshav elongated, thiab [b] los ntawm kev ntsuas kev sib raug zoo ntawm qhov ntev thiab qhov dav ntawm tus kheej stain.
Cov kws tshuaj ntsuam kev lag luam puas tuaj yeem ua haujlwm tom tsev?
Lawv tuaj yeem ua haujlwm puv sijhawm, ib nrab sijhawm, ua haujlwm ywj pheej, lossis ua tus neeg ua haujlwm ywj pheej hla ntau yam haujlwm. Thiab, vim tias ntau lub luag haujlwm ntawm tus kws tshuaj ntsuam xyuas kev lag luam suav nrog cov ntaub ntawv txheeb xyuas thiab kev pom (xav tias:
