Lub cev hnyav ntawm ib qho compound yog dab tsi?
Lub cev hnyav ntawm ib qho compound yog dab tsi?

Video: Lub cev hnyav ntawm ib qho compound yog dab tsi?

Video: Lub cev hnyav ntawm ib qho compound yog dab tsi?
Video: Yuav ua li cas thiaj khiav dim lub ntiajteb no 2024, Kaum ib hlis
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formula hnyav , nyob rau hauv chemistry, ib tug kom muaj nuj nqis xam los ntawm multiplying lub atomic hnyav (hauv atomic mass units) ntawm txhua lub ntsiab lus hauv a qauv los ntawm tus naj npawb ntawm atoms ntawm cov ntsiab lus tam sim no nyob rau hauv qauv , thiab tom qab ntawd ntxiv tag nrho cov khoom no ua ke.

Ib yam li ntawd ib tug yuav nug, koj yuav ua li cas nrhiav tau tus qauv hnyav ntawm ib qho kev sib txuas?

Los ntawm qauv thiab cov atomic loj ntawm cov atoms koj tuaj yeem ua tau nrhiav tus qauv hnyav los yog molecular loj rau tus compound . Rau xam cov mis hnyav rau a compound peb yuav xaiv cov atomic loj ntawm txhua lub hauv paus compound los ntawm lub sij hawm lub sij hawm, multiplyby tus naj npawb ntawm atoms, thiab sum qhov tshwm sim.

Ib sab saum toj no, qhov sib npaug ntawm qhov sib npaug yog dab tsi? Kev txhais ntawm sib npaug .: cov pawg ntawm ib yam khoom tshwj xeeb tshaj yog nyob rau hauv grams uas combines withor yog tshuaj sib npaug mus txog yim grams ntawm oxygen los yog ib grams ntawm hydrogen: lub atomic los yog molecular hnyav faib los ntawm valence.

Kuj nug, tus qauv hnyav yog dab tsi?

Formula hnyav , nyob rau hauv chemistry, lub sum ntawm theatomic hnyav ntawm tag nrho cov atoms tshwm nyob rau hauv ib tug muab tshuaj qauv . Nws feem ntau yog siv rau ib yam khoom uas tsis muaj ib tug neeg molecules, xws li cov ionic compoundsodium chloride.

Puas yog Formula hnyav tib yam li molecular hnyav?

Cov formula loj ( formula hnyav ) ntawm a molecule yog tus lej ntawm lub atomic hnyav ntawm theatoms nyob rau hauv nws empirical qauv . Cov formula loj ( formula hnyav ) ntawm cov piam thaj yog 30 (txawm tsis muaj units lossis lwm cov grams ib mole), thaum lub molecular loj ( molecular hnyav yog 180.156 g/mol.

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