Video: Muaj pes tsawg moles nyob hauv Al2O3?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Peb xav tias koj tab tom hloov ntawm moles Al2O3 andgram. Koj tuaj yeem saib cov ntsiab lus ntxiv ntawm txhua chav ntsuas: molecular hnyav ntawm Al2O3 lossis grams Cov tshuaj no tseem hu ua AluminiumOxide. SI base unit rau tus nqi ntawm cov khoom yog mole. 1 mole yog sib npaug 1 moles al2o3, ua 101.961276 grams.
Hais txog qhov no, pes tsawg moles ntawm Al nyob hauv Al2O3?
(6.38 * 2)/3 = 4.25 moles ntawm Al2O3 . Yog li 4.25 moles ntawm Al2O3 yog tsim thaum 6.38 moles O2 thiab 9.15 moles ntawm Al yog reacting.
Tsis tas li ntawd, pes tsawg moles ntawm o2 ions nyob rau hauv 0.350 moles ntawm txhuas oxide Al2O3? Cov mis rau aluminium oxide yog Al2O3 , uas txhais tau tias, yog aluminium oxide yog ionically bonded, txhua tus qauv loj ntawm aluminium oxide muaj peb O2 - ions . Hauv qhov piv txwv no,.0350 formula masses ntawm aluminium oxide yuav muaj, 0.350 mole Al2O3 (3 luj O2 -/1mole) = 3 * 0.350 1.05 = 1.05 TZS lus O2 -.
Hais txog qhov no, pes tsawg moles ntawm Al2O3 yuav raug tsim thaum sib tov?
Moles cov pa oxygen = 3.2 / (16 * 2) = 0.1 mole .. Yog li, los ntawm cov tshuaj tiv thaiv peb tau txais 4 moles ofAluminium reacts nrog 3 moles ntawm oxygen. Los ntawm qhov sib npaug peb paub tias 0.2 mol ntawm aluminium yuav teb nrog: Weget that 3/4 * 0.2 = 0.15 mol ntawm cov pa oxygen.
Qhov feem pua ntawm Al hauv Al2O3 yog dab tsi?
Ib feem pua ntawm cov khoom
| Element | Cim | Pawg Feem Xyuam |
|---|---|---|
| Aluminium | Al | 52.925% |
| Oxygen | O | 47.075% |
Pom zoo:
Muaj pes tsawg molecules nyob rau hauv 9 moles ntawm h2s?
9 moles ntawm H2S = 9 (6.022 * 10²³ molecules) = 5.4198 * 1024 molecules. Teb: muaj 5.4198 * 1024 molecules hauv 9.00 moles ntawm H2S
Muaj pes tsawg moles ntawm oxygen atoms nyob rau hauv ib mole ntawm Al2O3?
(c) 1 molecule ntawm Al2O3 muaj 3 atoms ntawm oxygen. Yog li, 1 mole ntawm Al2O3 muaj
Muaj pes tsawg molecules nyob rau hauv 5.2 moles ntawm h2o?
Ib mole ntawm dej muaj 6.022 x 1023 dej molecules
Muaj pes tsawg moles nyob hauv Argon?
Peb xav tias koj tab tom hloov ntawm moles Argon thiab gram. Koj tuaj yeem saib cov ntsiab lus ntxiv ntawm txhua chav ntsuas: molecular hnyav ntawm Argon lossis grams Cov mis molecular rau Argon yog Ar. SI base unit rau tus nqi ntawm cov khoom yog mole. 1 mole yog sib npaug rau 1 moles Argon, los yog 39.948 grams
Muaj pes tsawg hom tshuaj lom neeg muaj pes tsawg leeg?
Hauv chaw ua haujlwm muaj ob hom kev phom sij: kev noj qab haus huv thiab kev phom sij ntawm lub cev