Video: Koj pom qhov sib piv mole li cas hauv kev sib npaug tshuaj?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A mole yog a tshuaj suav unit, xws li 1 mole Luas = 6.022 * 1023 particle. Stoichiometry kuj xav tau kev siv kev sib npaug . Los ntawm kev sib npaug peb tuaj yeem tau txais mole ratio . Cov mole ratio yog cov piv ntawm moles ntawm ib yam khoom rau lub moles ntawm lwm yam khoom hauv a kev sib npaug.
Yog li ntawd, pes tsawg moles nyob rau hauv 1 kg ntawm NaCl?
SI base unit rau tus nqi ntawm cov khoom yog mole. 1 mole yog sib npaug rau 1 moles NaCl, los yog 58.44277 grams.
Ib yam li ntawd, koj yuav txiav txim siab li cas stoichiometric piv? Yog li, xam cov stoichiometry Los ntawm huab hwm coj, tus naj npawb ntawm cov molecules xav tau rau txhua reactant yog qhia nyob rau hauv moles thiab multiplied los ntawm molar loj ntawm txhua tus kom muab qhov loj ntawm txhua reactant ib mole ntawm cov tshuaj tiv thaiv. Qhov loj piv tuaj yeem suav los ntawm kev faib txhua qhov los ntawm tag nrho cov tshuaj tiv thaiv tag nrho.
Kuj Paub, qhov piv ntawm mole yog dab tsi?
tus piv nruab nrab ntawm cov nyiaj hauv moles ntawm ob lub tebchaw koom nrog hauv cov tshuaj tiv thaiv tshuaj. Mole ratios yog siv los ua kev hloov pauv ntawm cov khoom thiab cov tshuaj reactants hauv ntau cov teeb meem chemistry.
Vim li cas mole ratio tseem ceeb?
1 Teb. Mole ratios yog tseem ceeb vim mole ratios tso cai rau koj hloov moles ntawm ib yam khoom rau moles ntawm lwm yam khoom. Cov mole ratio yog cov khawv koob uas hloov ntawm A mus rau B. Tus mole ratios los ntawm cov tshuaj formula los yog sib npaug.
Pom zoo:
Yuav daws qhov tsis sib npaug ntawm cov kab sib npaug thiab cov kab sib npaug sib npaug li cas?
Kev daws qhov tsis sib npaug ntawm qhov sib npaug yog zoo ib yam li kev daws cov kab sib npaug. Qhov sib txawv tseem ceeb yog koj tig lub cim tsis sib xws thaum faib lossis muab faib los ntawm tus lej tsis zoo. Graphing linear inequalities muaj ob peb qhov sib txawv ntxiv. Qhov uas yog qhov ntxoov ntxoo muaj xws li qhov tseem ceeb uas qhov kev tsis sib xws ntawm cov kab tawm muaj tseeb
Cov coefficients hauv kev sib npaug tshuaj sib npaug qhia koj li cas txog cov reactants thiab cov khoom?
Cov coefficients ntawm kev sib npaug chemicalequation qhia peb cov txheeb ze ntawm moles ntawm reactants thiab cov khoom. Hauv kev daws teeb meem stoichiometric, kev hloov pauv ntawm moles ntawm reactants rau moles ntawm cov khoom raug siv. Hauv kev suav loj, cov molar loj yog xav tau los hloov cov huab hwm coj mus rau moles
Puas yog nws ua tau rau ib qho kev sib npaug ntawm ob txoj kab sib npaug kom tsis muaj kev daws teeb meem piav qhia koj qhov laj thawj?
Cov kab ke ntawm kab sib npaug tuaj yeem tsuas muaj 0, 1, lossis ib qho kev daws teeb meem tsis kawg. Ob kab no tsis tuaj yeem hla ob zaug. Cov lus teb raug yog tias qhov system muaj ib qho kev daws teeb meem. Total Number of Points Number of 2-Point Baskets Number of 3-Point Baskets 17 4 (8 ntsiab lus) 3 (9 points) 17 1 (2 points) 5 (15 points)
Koj ua li cas sib npaug cov piv txwv tshuaj sib npaug?
Piv txwv ntawm 10 Balanced Chemical Equations Sau ntawv sib npaug tshuaj sib npaug yog qhov tseem ceeb rau chav kawm chemistry. 6 CO2 + 6 H2O → C6H12O6 + 6 O2 (balanced equation for photosynthesis) 2 AgI + Na2S → Ag2S + 2 NaI. Ba3N2 + 6 H2O → 3 Ba(OH)2 + 2 NH3 3 CaCl2 + 2 Na3PO4 → Ca3(PO4)2 + 6 NaCl. 4 FeS + 7 O2 → 2 Fe2O3 + 4 SO2
Dab tsi yog qhov sib txawv ntawm cov kab lus sib npaug thiab qhov sib npaug sib npaug?
Cov kab lus sib npaug muaj qhov muaj txiaj ntsig zoo ib yam tab sis tau nthuav tawm nyob rau hauv ib hom ntawv sib txawv uas siv cov khoom ntawm cov lej xws li ax + bx = (a + b) x yog cov kab lus sib npaug. nruj me ntsis, lawv tsis yog 'sib npaug', yog li peb yuav tsum siv 3 kab sib luag hauv 'sib npaug' es tsis yog 2 raws li qhia ntawm no