Qhov sib txawv tseem ceeb ntawm ammonia thiab boron trifluoride yog ammonia yog ib qho polar molecule, whereas boron trifluoride yog ib tug nonpolar molecule.
Ammonia thiab boron trifluoride muaj cov atomicity zoo sib xws thiab zoo sib xws kev sib txuas ntawm atoms, tab sis muaj ib leeg electron khub ntawm nitrogen atom hauv ammonia molecule thaum tsis muaj ib leeg electrons ntawm boron atom hauv boron trifluoride. Qhov tseeb no ua rau ammonia ib tug polar molecule thiab boron trifluoride ib tug nonpolar molecule.
Ammonia yog dab tsi?
Ammonia yog ib qho inorganic compound uas muaj cov tshuaj formula NH3Nws yog ib qho gaseous tshuaj thiab yog qhov yooj yim tshaj pnictogen hydride. Ammonia tshwm sim raws li cov pa roj uas tsis muaj xim muaj pungent, irritating tsw. Lub npe IUPAC ntawm Ammonia yog azane. Cov molar loj ntawm ammonia yog 17.03 g / mol. Nws cov ntsiab lus melting yog −77.73 ° C, thiab nws qhov kub yog -33.34 ° C.
Thaum xav txog qhov tshwm sim ntawm ammonia roj, nws tshwm sim nyob rau hauv ib puag ncig tab sis nyob rau hauv kab raws li ib yam khoom ntawm nitrogenous tsiaj thiab zaub teeb meem. Qee zaum, peb tuaj yeem pom ammonia hauv dej nag thiab. Hauv peb lub cev, ob lub raum tso tawm ammonia kom tshem tawm cov kua qaub ntau dhau.
Daim duab 01: Ammonia
Cov qauv tshuaj ntawm ammonia molecule muaj nitrogen atom khi rau peb hydrogen atoms. Txij li thaum muaj tsib electrons nyob rau hauv lub sab nraud electron plhaub ntawm nitrogen, muaj ib leeg electron khub ntawm nitrogen atom ntawm ammonia molecule. Yog li ntawd, lub geometry ntawm ammonia molecule yog trigonal pyramidal. Tsis tas li ntawd, peb tuaj yeem liquefy cov compound no yooj yim. Qhov no yog vim nws muaj peev xwm tsim hydrogen bonds ntawm ammonia molecules vim muaj N-H bonds thiab ib leeg electron khub ib yam nkaus.
Boron Trifluoride yog dab tsi?
Boron trifluoride yog ib qho inorganic compound uas muaj cov tshuaj formula BF3. Nws yog ib qho roj pungent uas tsis muaj xim thiab muaj kuab lom. Nws tuaj yeem tsim cov pa taws dawb hauv huab cua ntub. Txawm li cas los xij, muaj ob hom loj ntawm boron trifluoride ua anhydrous form thiab dihydrate form; daim ntawv anhydrous yog cov roj tsis muaj xim, thaum daim ntawv dihydrate yog cov kua tsis muaj xim. Thaum xav txog lawv cov solubility hauv dej, daim ntawv anhydrous nyiam mus rau exothermic decomposition thaum ntxiv rau dej, whereas daim ntawv dihydrate yog dej-soluble heev. Cov khoom no yog corrosive, yog li peb yuav tsum tau siv stainless hlau, Monel, thiab Hastelloy rau khaws cov khoom no.
Daim duab 02: Boron Trifluoride
Boron trifluoride molecule muaj trigonal planar geometry. Nws tsis muaj lub sijhawm dipole vim nws symmetry. Cov molecule no yog isoelectronic nrog carbonate anion. Hauv cov ntsiab lus, peb hu ua boron trifluoride ib hom tshuaj tsis muaj hluav taws xob. Nws muaj qhov exothermic reactivity nrog Lewis hauv paus.
Hauv kev sib txuas ntawm boron trifluoride, peb tuaj yeem tsim nws los ntawm cov tshuaj tiv thaiv ntawm boron oxides thiab hydrogen fluoride. Txawm li cas los xij, hauv chav kuaj xav tau, peb tuaj yeem tsim boron trifluoride siv boron trifluoride etherate (cov kua muag muag).
Qhov txawv ntawm Ammonia thiab Boron Trifluoride yog dab tsi?
Ammonia thiab boron trifluoride yog 4-atom molecules, ob qho tib si muaj lub hauv paus atom txuas rau peb lwm atoms. Txawm li cas los xij, tsis zoo li hauv boron trifluoride molecule, muaj ib leeg electron khub nyob rau hauv ammonia molecule, uas ua rau nws polar. Yog li ntawd, qhov sib txawv tseem ceeb ntawm ammonia thiab boron trifluoride yog ammonia yog ib tug polar molecule, whereas boron trifluoride yog ib tug nonpolar molecule.
Cov ntaub ntawv hauv qab no teev qhov sib txawv ntawm ammonia thiab boron trifluoride hauv daim ntawv teev npe rau ib sab ntawm kev sib piv.
Summary – Ammonia vs Boron Trifluoride
Ammonia yog ib qho inorganic compound uas muaj cov tshuaj formula NH 3,thaum Boron trifluoride yog ib qho inorganic compound uas muaj cov tshuaj formula BF3. Qhov sib txawv tseem ceeb ntawm ammonia thiab boron trifluoride yog ammonia yog ib qho polar molecule, whereas boron trifluoride yog ib tug nonpolar molecule.
