Video: RFM yog dab tsi hauv chemistry?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Tus lej koj tau txais yog hu ua Relative Formula Mass, nws yog qhov loj ntawm ib mole ntawm cov compound hauv grams. Tus txheeb ze Formula Mass tuaj yeem sau ua Mr los yog RFM . Piv txwv li, qhov loj ntawm ib mole ntawm carbon dioxide (CO2) yog. (1 x RAM ntawm carbon) + (2 x RAM ntawm oxygen)
Tom qab ntawd, RFM txhais li cas hauv chemistry?
kwv tij mis loj
Ib yam li ntawd, MR yog dab tsi hauv chemistry? (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 yuav siv tau. Mr kuj tseem hu ua tus txheeb ze molar mass, Mr , B = MB/Mθ, qhov twg Mθ = 1 g mol-1.
Xav txog qhov no, koj yuav xam RFM li cas?
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.
Puas yog Mr thiab RFM tib yam?
Nws yog lub hauv paus ib yam . Relative atomic mass yog qhov kev suav ntawm ib tus neeg loj ntawm cov atoms. Qhov no feem ntau siv rau cov tebchaw molecular xws li dej, ammonia, thiab lwm yam. Uas yog, atomic mass ntawm molecules.
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