Cov txheej txheem:
Video: Yuav ua li cas koj xam MR hauv chemistry?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Tus txheeb ze molecular mass/relative formula mass yog txhais raws li qhov sum ntawm tag nrho cov atomic masses ntawm tag nrho cov atoms nyob rau hauv lub mis (Mr). e.g. rau ionic compounds e.g. NaCl = 23 + 35.5 58.5) los yog molecular mass rau covalent cov ntsiab lus los yog cov tebchaw
Ua li no, koj ua li cas xam RFM hauv chemistry?
Yuav nrhiav tau kwv tij mis loj (M r) ntawm ib tug compound, koj ntxiv ua ke cov txheeb ze atomic loj qhov tseem ceeb (A r tus nqi) rau tag nrho cov atoms hauv nws qauv . Nrhiav tus M r ntawm carbon monoxide, CO. Nrhiav M r sodium oxide, Na 2O. Cov kwv tij mis loj ntawm ib yam khoom, qhia hauv grams, yog hu ua ib mole ntawm cov khoom ntawd.
AR thiab MR hauv chemistry yog dab tsi? (6) Rau molecules Mr yog tus txheeb ze molecular mass lossis molecular hnyav; rau atoms Mr yog tus txheeb ze atomic mass lossis atomic hnyav thiab lub cim Ar tej zaum yuav siv tau.
Ib yam li ntawd, nws raug nug, Mr sawv rau dab tsi hauv chemistry?
Tus txheeb ze formula mass ( Mr ) ntawm ib tug compound yog cov sum ntawm cov txheeb ze atomic masses ntawm cov atoms nyob rau hauv cov zauv qhia nyob rau hauv lub mis.
AR yog xam li cas?
Formula thiab xam
- Ntxiv tus nqi ntawm cov nyiaj tau txais thaum pib ntawm lub sijhawm xav tau rau tus nqi thaum kawg ntawm lub sijhawm thiab faib cov lej los ntawm ob.
- Faib tus nqi ntawm kev muag credit rau lub sijhawm los ntawm cov nyiaj nruab nrab uas tau txais nyob rau tib lub sijhawm.
Pom zoo:
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Yuav ua li cas koj lub npe rings hauv organic chemistry?
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