Video: Puas yog ch4 a Lewis acid lossis base?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib tug naj npawb ntawm Pawg 14 elemental hydrides: CH 4 , SiH4, GeH4 & SnH4, yog inert rau Lewis acid thiab Lewis puag reagents. (Cov hom tuaj yeem raug oxidized thiab lawv raug cuam tshuam los ntawm radicals thiab diradicals.) Lewis puag Tab sis, zoo li helium, nws yog ib qho tsis muaj zog proton abstractor.
Cov lus nug tseem yog, ch4 yog cov kua qaub lossis lub hauv paus?
Yuav kom ua acidic Tom qab ntawd, ib yam khoom yuav tsum muaj hydrogen, nyob rau hauv ib daim ntawv uas tuaj yeem tso rau hauv dej. Cov khoom xws li CH4 (methane) tsis yog acidic raws li tag nrho plaub hydrogens tau khi nruj heev rau cov pa roj carbon thiab tsis mus qhov twg. CH 4 muaj pH nruab nrab, nyob ib ncig ntawm 7.
Ib sab saum toj no, yog ccl4 yog Lewis acid los yog hauv paus? Ccl4 tsis ua raws li ib tug Lewis acid tab sis sicl4 ua raws li ib tug Lewis acid.
Kuj paub, vim li cas ch4 tsis yog Lewis puag?
Piv txwv li, methane, CH4, muaj tag nrho nws cov valence electrons nyob rau hauv daim ntawv cog lus khub. Cov khub niam txiv no ruaj khov heev los pub dawb raws li ib txwm muaj. Methane yog tsis yog Lewis puag.
Puas yog ch3nh2 lub hauv paus muaj zog lossis tsis muaj zog?
CH3NH2 yog a tsis muaj zog puag (Kb = 5.0 * 10-4) thiab yog li ntsev, CH3NH3NO3, ua raws li ib tug qaug zog kua qaub.
Pom zoo:
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