Dab tsi yog empirical formula ntawm ib qho compound?
Dab tsi yog empirical formula ntawm ib qho compound?

Video: Dab tsi yog empirical formula ntawm ib qho compound?

Video: Dab tsi yog empirical formula ntawm ib qho compound?
Video: Nrauj koj tag ces luag tej ntxub by tub vwj 6/22/2019 2024, Kaum ib hlis
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Cov empirical formula ntawm a compound yog qhov yooj yim tshaj tag nrho tus lej piv ntawm txhua hom atom hauv a compound . Nws tuaj yeem yog tib yam li cov khoom sib xyaw molecular formula , tab sis tsis tas li. Ib empirical formula tuaj yeem xam los ntawm cov ntaub ntawv hais txog qhov loj ntawm txhua lub ntsiab lus hauv a compound los yog los ntawm cov feem pua.

Tsis tas li lo lus nug yog, koj yuav ua li cas thiaj nrhiav tau cov qauv empirical ntawm ib qho kev sib txuas?

Pib nrog tus naj npawb ntawm grams ntawm txhua lub caij, muab rau hauv qhov teeb meem. Hloov cov huab hwm coj ntawm txhua lub caij mus rau moles siv cov molar loj los ntawm lub sijhawm teem sijhawm. Faib txhua tus nqi mole los ntawm tus lej tsawg tshaj plaws ntawm moles xam.

Tsis tas li ntawd, dab tsi yog empirical thiab molecular mis? Cov qauv molecular qhia rau koj paub pes tsawg atoms ntawm txhua lub ntsiab lus nyob rau hauv ib lub compound, thiab cov qauv empirical Qhia rau koj paub qhov yooj yim tshaj plaws los yog feem ntau txo qhov piv ntawm cov ntsiab lus nyob rau hauv ib tug compound. Yog ib tug compound molecular formula tsis tuaj yeem txo qis dua, ces tus empirical formula yog tib yam li cov molecular formula.

Kuj paub, piv txwv empirical formula yog dab tsi?

Hauv chemistry, cov empirical formula ntawm ib qho tshuaj compound yog qhov yooj yim tshaj qhov zoo ntawm tus lej ntawm cov atoms tam sim no hauv ib qho chaw. Ib qho yooj yim piv txwv ntawm lub tswv yim no yog tias tus empirical formula ntawm sulfur monoxide, los yog SO, tsuas yog SO, raws li yog qhov empirical formula ntawm disulfur dioxide, S2O2.

Puas yog h2o yog ib qho qauv ntawm empirical?

Rau dej, cov molecule yog tsim los ntawm ob lub hydrogen atoms thiab ib tug oxygen atom, yog li nws cov molecular. qauv yog H2O . Qhov no kuj sawv cev rau qhov yooj yim piv ntawm atoms nyob rau hauv lub molecule, yog li nws empirical formula yog H2O . Yog li dej molecular thiab empirical cov qauv yog tib yam. Txawm li cas los xij, lawv txawv rau hydrogen peroxide.

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