Video: Puas yog PBr3 polar?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
PBr3 muaj 3 × 7 + 5 = 26 valenceelectrons uas Br atoms tau haus 8 txhua (tag nrho 24) nyob rau hauv abonding thiab 3 ib leeg. Qhov ntawd tso Br atoms tsis nyob hauv tib lub dav hlau li P atom, thiab vim P-Br yog ib qho polar daim ntawv cog lus, 3P-Br polar vectors tsis tso tseg. PBr3 yog polar.
Ntawm no, hom ntawv cog lus twg yog PBr3?
- Quora. Compounds muaj ob lub ntsiab lus (hu ua binary compounds) tuaj yeem muaj ionic lossis covalent kev sib raug zoo . Yog hais tias lub compound yog tsim los ntawm ametal thiab tsis yog hlau, nws kev sib raug zoo yuav beionic.
Tom qab ntawd, lo lus nug yog, puas yog PBr3 soluble hauv dej? Phosphorus tribromide
| Cov npe | |
|---|---|
| Qhov ntom | 2.852 g / cm 23 |
| Melting point | −41.5 °C (−42.7 ° F; 231.7 K) |
| Boiling point | 173.2 ° C (343.8 ° F; 446.3 K) |
| Solubility hauv dej | ceev hydrolysis |
Khaws qhov no hauv kev xav, yog SiF4 polar?
thaum txhua daim ntawv cog lus Si-F yog polar (polarized Si deltaplus thiab F delta rho tawm) tag nrho cov molecule tsis yog polar asthe tetrahedral kev npaj ntawm plaub Si-F tshem tawm cov dipolesrendering lub Sib 4 ntawm zero dipole.
Kuv yuav ua li cas thiaj paub tias daim ntawv cog lus yog polar?
Rau txiav txim polarity ntawm covalent daim ntawv cog lus siv tus lej txhais tau tias, nrhiav qhov sib txawv ntawm theelectronegativity ntawm atoms; yog qhov tshwm sim yog nruab nrab ntawm 0.4 thiab 1.7, ces, feem ntau, lub daim ntawv cog lus yog polar covalent.
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