Video: Yuav ua li cas koj xam feem pua purity?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
% kev huv = g ntawm cov khoom ntshiab tau ÷ gof muab piv txwv × 100. Feem pua purity ntawm ib yam khoom yuav ua tau xam los ntawm kev faib qhov loj ntawm cov tshuaj dawb huv los ntawm tag nrho cov qauv ntawm cov qauv, thiab tom qab ntawd muab cov lej no los ntawm 100.
Ntawm no, puas yog feem pua purity tib yam li feem pua yield?
Feem pua Yield & Feem pua Purity . Hauv cov tshooj lus no, peb yuav xav txog yuav ua li cas xam tus feem pua yield los ntawm cov tshuaj tiv thaiv thiab cov feem pua purity ntawm cov khoom tau txais. Cov tawm los yog tus nqi ntawm cov khoom koj tau txais los ntawm cov tshuaj tiv thaiv. Piv txwv tias peb muaj ib lub Hoobkas uas ua cov chiv lossis xim.
Tom qab ntawd, lo lus nug yog, dab tsi yog qhov txawv ntawm purity thiab assay? Lub ntsiab qhov sib txawv ntawm qhov kev xeem thiab kev huv yog tias ib soj ntsuam yog qhov kev txiav txim siab ntawm ib qho ntawm cov khoom tseem ceeb hauv a qauv hos kev huv yog kev txiav txim siab ntawm impurities hauv a qauv. Assay thiab kev huv yog ob hom kev ntsuas siv los txiav txim cov khoom ntawm cov qauv.
Kuj Paub, koj ua li cas kuaj qhov purity ntawm ntsev?
Zoo sib xws ntsev , cov moles ntawm txhua qhov sib xyaw yog ata 1 txog 1 piv. Purity ntawm ib qho ntsev compound tuaj yeem txiav txim siab nrog kev paub txog cov molar loj ntawm cov qauv, themolar loj ntawm txhua lub ntsiab lus thiab tus qauv tus nqi ntawm feem pua ntawm ntsev ntawm nws yog purest.
Koj tuaj yeem txheeb xyuas cov khoom ntshiab li cas?
Cov tshuaj ntshiab raug txhais ua tshuaj uas yog tsim los ntawm tsuas yog ib hom atom lossis molecule. Lub purity ntawm a yam khoom yog qhov ntsuas ntawm qhov uas tau muab yam khoom yog dawb huv . Lub cev muaj zog ntawm a cov khoom ntshiab suav nrog cov ntsiab lus zoo melting thiab boilingpoints.
Pom zoo:
Yuav ua li cas koj xam qhov zaus ntawm zaus thiab feem pua?
Ua li no, faib cov zaus los ntawm tag nrho cov txiaj ntsig thiab muab faib los ntawm 100. Hauv qhov no, qhov zaus ntawm thawj kab yog 1 thiab tag nrho cov txiaj ntsig yog 10. Qhov feem pua yog tom qab ntawd yog 10.0. Cov kab kawg yog qhov feem pua Cumulative
Koj yuav suav li cas feem pua ntawm cov tshuaj chlorine?
Cov tshuaj chlorine isotope nrog 18 neutrons muaj ntau ntawm 0.7577 thiab ib pawg ntawm 35 amu. Txhawm rau xam qhov nruab nrab atomic mass, muab cov feem los ntawm cov lej loj rau txhua tus isotope, tom qab ntawd ntxiv lawv ua ke
Yuav ua li cas koj thiaj nrhiav tau cov mis empirical nrog feem pua?
Transcript Faib txhua % los ntawm atomic mass ntawm lub caij. Faib txhua cov lus teb los ntawm qhov tsawg tshaj plaws. Kho cov lej no rau hauv lawv qhov qis tshaj tus lej tag nrho
Yuav ua li cas koj xam voltage poob feem pua?
Txhawm rau xam qhov hluav taws xob poob: Muab ntau qhov tam sim no hauv amperes los ntawm qhov ntev ntawm lub voj voog hauv ko taw kom tau txais ampere-feet. Qhov ntev ntawm Circuit Court yog qhov kev ncua deb ntawm lub hauv paus chiv keeb mus rau qhov kawg ntawm lub voj voog. Faib los ntawm 100. Muab los ntawm qhov tsim nyog voltage nco tus nqi hauv cov ntxhuav. Qhov tshwm sim yog voltage poob
Yuav ua li cas koj sau ib feem raws li ib tug khoom ntawm ib tug tag nrho cov zauv thiab ib feem feem?
Cov cai los nrhiav cov khoom ntawm ib feem feem thiab tag nrho tus lej Peb xub sau tag nrho cov lej ua ib feem, piv txwv li, sau nws faib los ntawm ib qho; Piv txwv li: 7 yog sau ua 71. Peb mam li muab cov zauv. Peb muab cov denominators. Yog tias yuav tsum tau ua kom yooj yim, nws ua tiav thiab tom qab ntawd peb sau cov feem kawg