Cov txheej txheem:
Video: Koj pom qhov theoretical feem pua ntawm cov pa oxygen hauv KClO3 li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov kev sim feem pua ntawm cov pa oxygen nyob rau hauv tus qauv ntawm KClO3 yog xam los ntawm kev siv qhov sib npaug. Kev sim % oxygen = Mas oxygen poob x 100 Mass of KClO3 Cov theoretical tus nqi ntawm % oxygen hauv potassium chlorate yog xam los ntawm tus qauv KClO3 nrog molar mass = 122.6 g / mol.
Ntxiv mus, qhov feem pua ntawm cov pa oxygen hauv KClO3 yog dab tsi?
Cov lus nug: 1. Kev sim feem pua ntawm cov pa oxygen Hauv cov poov tshuaj chlorate yog 37.6%. Theoretical xam ntawm huab hwm coj feem pua ntawm cov pa oxygen nyob rau hauv poov tshuaj chlorate yog 39.17%.
| Loj ntawm khoob crucible thiab npog | 22.21 Nws |
|---|---|
| Theoretical feem pua ntawm oxygen hauv KClO3 | 39.17 % |
| yuam kev | 1.57 % |
| Qhov feem pua yuam kev | 4.14% |
Kuj Paub, koj ua li cas xam qhov loj ntawm oxygen poob? Cov pa oxygen poob = 108.100g- Potassium chlorate (KClO3) muaj 3 oxygen atoms, tag nrho cov pa oxygen 15.999 g/mol * 3 = 47.997g/mol.
Ib yam li ntawd, muaj pes tsawg oxygen atoms nyob rau hauv ib lub molecule ntawm KClO3?
Yog li kauj ruam 1 yog, pes tsawg atom ntawm oxygen ( O ) muaj nyob rau hauv 1 KClO3 molecule ? Qhov ntawd yuav yog 3, raws li qhia hauv tus tshuaj formula. Yog li ntawd nyob ntawd kuj 3 moles O hauv 1 mole KClO3.
Koj yuav nrhiav Percent Composition li cas?
Ib feem pua
- Nrhiav cov molar loj ntawm tag nrho cov ntsiab nyob rau hauv lub compound nyob rau hauv grams ib mole.
- Nrhiav cov molecular loj ntawm tag nrho cov compound.
- Faib cov khoom molar mass los ntawm tag nrho cov molecular loj.
- Tam sim no koj yuav muaj tus lej ntawm 0 thiab 1. Muab nws los ntawm 100% kom tau txais cov feem pua.
Pom zoo:
Koj pom molarity li cas los ntawm qhov ntom thiab feem pua?
Molarity yog tus naj npawb ntawm moles ntawm soluteper liter ntawm kev daws. Hloov mus rau qhov ntom los ntawm kev muab cov lej ntawm moles los ntawm cov molecular loj ntawm cov compound.Hloov qhov ntom rau molarity los ntawm kev hloov mus rau gramsper liter thiab faib los ntawm molecular mass ntawm cov compound ingrams
Koj pom qhov kwv yees li cas feem pua ntawm kev siv txoj cai empirical?
Nrhiav thaj tsam hauv qab ntawm qhov nkhaus ntawm x = 9 txog x = 13. Txoj Cai Empirical lossis 68-95-99.7% Txoj Cai muab kwv yees feem pua ntawm cov ntaub ntawv poob hauv ib tus qauv sib txawv (68%), ob tus qauv sib txawv (95%) , thiab peb tus qauv sib txawv (99.7%) ntawm qhov nruab nrab
Qhov loj feem pua ntawm cov pa oxygen hauv potassium sulfate yog dab tsi?
Cov feem pua ntawm cov ntsiab lus Element Symbol Mass Percent Oxygen O 36.726% Sulfur S 18.401% Potassium K 44.874%
Txoj cai thermodynamic twg hais tias koj Tsis tuaj yeem hloov 100 feem pua ntawm cov cua sov rau hauv cov khoom siv hluav taws xob ntawm cov lus teb xaiv?
Txoj Cai thib ob
Qhov twg ntawm cov ntsiab lus hauv qab no feem ntau pom nyob rau hauv feem ntau cov chiv?
Cov tshuaj chiv niaj hnub suav nrog ib lossis ntau tshaj ntawm peb lub ntsiab lus tseem ceeb tshaj plaws hauv cov zaub mov noj: nitrogen, phosphorus, thiab potassium. Qhov tseem ceeb thib ob yog cov ntsiab lus sulfur, magnesium, thiab calcium