Video: KF ntawm lauric acid yog dab tsi?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Lauric acid (qhov hnyav hauv qhov kev sim no) tau tshaj tawm Kf = 3.9 °C · kg/mol = 3.9 °C/m. Hauv qhov kev sim no, koj yuav txiav txim siab qhov chaw khov ntawm cov kuab tshuaj ntshiab, CH3 (CH2) 10COOH ( lauric acid ).
Hais txog qhov no, dab tsi yog van't Hoff yam rau lauric acid?
Lauric acid , CH3 (CH2) 10COOH, tseem hu ua dodecanoic kua qaub thiab muaj ib van't Hoff factor (i) ntawm 1. Txhawm rau ua qhov kev txiav txim siab no, koj yuav tsum paub qhov loj ntawm cov kuab tshuaj thiab cov kuab tshuaj thiab cov molecular loj ntawm cov kuab tshuaj. Qhov no yuav cia koj xam cov colligative molality ntawm cov tshuaj, mc.
Tom qab ntawd, lo lus nug yog, KF yog dab tsi nyob rau hauv qhov chaw txias txias? Kf yog mool freezing point kev nyuaj siab tsis tu ncua ntawm cov kuab tshuaj (1.86 ° C / m rau dej). m = molality = moles ntawm solute ib kilogram ntawm hnyav.
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog molality ntawm lauric acid?
Tus nqi Kf rau Lauric Acid Yog 3.9°C•kg/mol.
KF ntawm acetic acid yog dab tsi?
Qhov ntom ntawm acetic acid yog 1.049 g/ml Kf ( acetic acid ) = 3.90 °C · kg/mol Qhov ceev ntawm qhov tsis paub yog 0.791 g / mL.
Pom zoo:
Dab tsi yog rau lub tshuab yooj yim thiab cov piv txwv ntawm lawv yog dab tsi?
Cov no yog rau lub tshuab yooj yim: cov nplais, lub log thiab lub qag, qib, lub dav hlau inclined, ntsia hlau, thiab lub log
Kev tshawb fawb txog kev muaj peev xwm yog dab tsi yog dab tsi txawv ntawm nws?
Hom Feasibility. Ntau hom kev ua tau zoo uas feem ntau suav nrog suav nrog kev ua tau zoo, kev ua haujlwm ua tau zoo, thiab kev ua lag luam nyiaj txiag. Kev ua haujlwm muaj peev xwm txheeb xyuas qhov uas yuav tsum tau ua software ua cov kauj ruam los daws teeb meem kev lag luam thiab cov neeg siv khoom xav tau
Dab tsi txaus ntshai zoo kawg li nws yog qhov peb yuav tsum tau khawb trenches thiab sim cov roj npog qhov ncauj qhov ntswg ntawm no vim muaj kev sib cav nyob hauv lub tebchaws nyob deb ntawm cov neeg uas peb tsis paub dab tsi?
Qhov txaus ntshai npaum li cas, zoo heev, zoo kawg yog tias peb yuav tsum tau khawb trenches thiab sim roj-qhov ncauj qhov ntswg ntawm no vim muaj kev sib cav nyob rau hauv ib lub teb chaws nyob deb ntawm cov neeg uas peb tsis paub dab tsi. Nws zoo nkaus li tseem tsis yooj yim dua tias kev sib cav uas twb tau hais tseg hauv txoj cai yuav tsum yog kev ua tsov rog
Piv txwv li, muaj zog acid thiab qaug zog acid yog dab tsi?
Piv txwv ntawm cov acids muaj zog yog hydrochloric acid (HCl), perchloric acid (HClO4), nitric acid (HNO3) thiab sulfuric acid (H2SO4). Cov kua qaub tsis muaj zog tsuas yog qee qhov sib cais, nrog rau ob qho tib si undissociated acid thiab nws cov khoom dissociation tam sim no, nyob rau hauv kev daws, nyob rau hauv equilibrium nrog ib leeg
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