Video: Dab tsi yog atom kev lag luam ntawm cov tshuaj tiv thaiv?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov atom kev lag luam ntawm cov tshuaj tiv thaiv yog ib qho kev ntsuas ntawm tus nqi ntawm cov khoom pib uas xaus li cov khoom muaj txiaj ntsig. Nws yog ib qho tseem ceeb rau kev txhim kho kom ruaj khov thiab rau nyiaj txiag yog vim li cas siv cov tshuaj tiv thaiv nrog siab atom kev lag luam.
Ua raws li qhov no saib, txhais li cas los ntawm atom kev lag luam?
Atom kev lag luam yog qhov ntsuas ntawm qhov xav tau cov khoom siv tau tsim los ntawm cov tshuaj reactants hauv cov tshuaj tiv thaiv tshuaj. Nws yog feem ntau qhia raws li feem pua atom kev lag luam : Yuav kom siv lub tswv yim ntawm atom kev lag luam , peb yuav tsum: Muaj kev sib npaug tshuaj.
hom tshuaj tiv thaiv dab tsi muaj qhov siab tshaj atom kev lag luam? Cov cov tshuaj tiv thaiv uas tsuas yog muab ib yam khoom, muaj qhov siab tshaj plaws atom kev lag luam ntawm 100% thiab cov no yog feem ntau kev cuam tshuam nyiaj txiag e.g. synthesis ntawm ammonia thiab reacting ethene nrog dej los ua ethanol.
Hais txog qhov no, nws puas tuaj yeem ua rau muaj kev cuam tshuam kom muaj 100% atom kev lag luam?
Qhov siab tshaj plaws atom kev lag luam muaj peev xwm ua tau rau cov tshuaj tiv thaiv yog 100 %. Qhov no yuav yog rooj plaub yog tias tsuas muaj ib yam khoom (cov khoom xav tau) thiab tsis muaj cov khoom lag luam. Cov atom kev lag luam ntawm ib qho tshwj xeeb tshuaj tiv thaiv tsuas tuaj yeem txhim kho los ntawm kev nrhiav kev siv rau lwm yam khoom, uas ua rau lwm yam khoom uas xav tau.
Dab tsi yog qhov sib npaug rau moles?
Piv txwv ua haujlwm: moles = mass ÷ molar loj (n=m/M) Xam cov pa oxygen, O2, nyob rau hauv moles tam sim no nyob rau hauv 124.5 g ntawm oxygen gas.
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