2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Teb tiav: Ib qho meso compound lossis meso isomer yog tus tswv cuab uas tsis muaj qhov muag pom ntawm ib pab pawg neeg stereoisomers, uas muaj tsawg kawg yog ob lub qhov muag pom. Qhov no txhais tau hais tias cov molecule tsis yog chiral txawm hais tias nws muaj ob los yog ntau tshaj stereo genic centres. … Cyclic compounds kuj yog theoretically meso.
Cov tshuaj meso puas muaj cov haujlwm kho qhov muag?
Ib qho meso compound lossis meso isomer yog tsis yog tus tswv cuab ntawm qhov muag pom ntawm ib pawg ntawm cov stereoisomers, tsawg kawg yog ob qho uas yog optically active. Qhov no txhais tau hais tias txawm tias muaj ob lossis ntau lub chaw stereogenic, cov molecule tsis yog chiral.
Vim li cas cov tshuaj meso tsis qhia txog kev ua haujlwm kho qhov muag?
Meso tebchaw yog cov tebchaw uas nws cov molecules yog superimposable ntawm lawv daim iav duab txawm tias muaj cov pa roj carbon atom asymmetric. … Ob ob halves ntawm lub molecule tig lub dav hlau ntawm polarized lub teeb nyob rau hauv opposite direction thiab li no tshem tawm cov nyhuv ntawm ib leeg thiab ua rau lub molecule optically inactive.
Qhov twg tuaj yeem muaj nyob ua qhov kho qhov muag isomers?
Compound F, C4H10O, muaj nyob ua ib khub ntawm optical isomers.
Puas optically inactive compounds qhia optical isomerism?
Nyob rau hauv thawj lo lus nug muaj dav hlau ntawm symmetry thiab tsis muaj chiral chaw yog li ntawd molecule yog symmetric li no tsis qhia optical isomerism. Hauv 2, tsis muaj tag nrho 4, optically tsis ua haujlwm. Nyob rau hauv 3 muaj dav hlau ntawm symmetry li ob leeg Cl yog tib sab.
Pom zoo:
Qhov txawv ntawm qhov taw qhia thiab qhov taw qhia yog dab tsi?
Raws li nouns qhov txawv ntawm qhov taw qhia thiab qhov taw qhia yog tias indicative yog (cov qauv sau ntawv) qhov taw qhia qhov taw qhia thaum qhov taw qhia yog tus taw tes lossis qhov ntsuas uas qhia qee yam. Puas qhia thiab qhia tib yam?
Cov piv txwv ntawm cov kuab tshuaj thiab cov kuab tshuaj yog dab tsi?
Solutes yog cov khoom uas yaj rau hauv cov kuab tshuaj thiab peb xaus nrog kev daws. Qee qhov piv txwv ntawm cov kuab tshuaj yog dej, ethanol, toluene, chloroform, acetone, mis nyuj, thiab lwm yam. Piv txwv ntawm cov kuab tshuaj muaj xws li, qab zib, ntsev, oxygen, thiab lwm yam … Cov dej dej muaj dej (kua kua) thiab yaj oxygen (solute).
Puas yog lub titanic tog vim yog qhov pom qhov muag pom?
Kev tshawb fawb tshiab tshiab rau hauv lub dab dej ntawm Titanic tau nthuav tawm lub nkoj poob vim tias cov dej khov tau zais los ntawm qhov pom qhov muag pom. Ib tus kws tshaj lij hauv ntiaj teb ntawm cov neeg caij tsheb uas tsis muaj kev puas tsuaj tau pom cov pov thawj "
Cov tshuaj pleev qhov muag puas zoo rau qhov muag tsis pom kev?
Lub qhov muag qhuav ntev: Qhov muag qhuav tuaj yeem cuam tshuam koj ob lub qhov muag hauv ntau txoj hauv kev, suav nrog ua rau pom qhov muag tsis pom kev sib txawv. Thaum kua muag cuav (lubricating qhov muag tee) tuaj yeem pab tau, ntau qhov mob ntawm qhov muag qhuav yuav xav tau cov tshuaj noj lossis cov ntsaws ntsaws ntsaws ntsaws kom koj lub qhov muag xis nyob, noj qab haus huv thiab pom zoo.
Cov tshuaj twg yog cov tshuaj uas tsis yog tshuaj tiv thaiv inflammatory analgesic?
Txhua yam koj yuav tsum paub txog NSAIDs. Nonsteroidal anti-inflammatory tshuaj (NSAIDs) yog cov tshuaj uas txo qis lossis txo qhov mob. Cov piv txwv nrov tshaj plaws ntawm cov tshuaj hauv pawg no yog aspirin thiab ibuprofen. NSAIDs tuaj nyob rau hauv lub ntsiab lus dav ntawm non-opioid analgesics.
