KF ntawm lauric acid yog dab tsi?
KF ntawm lauric acid yog dab tsi?

Video: KF ntawm lauric acid yog dab tsi?

Video: KF ntawm lauric acid yog dab tsi?
Video: Uric acid and solutions | യൂറിക് ആസിഡ് പ്രതിവിധികൾ. | Ethnic Health Court 2024, Kaum ib hlis
Anonim

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: