Video: Cov coefficients hauv kev sib npaug tshuaj sib npaug qhia koj li cas txog cov reactants thiab cov khoom?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov coefficients ntawm a balanced chemicalequation qhia peb tus txheeb ze ntawm moles ntawm reactants thiab cov khoom . Nyob rau hauv kev daws teeb meem stoichiometric, conversionfactors hais txog moles ntawm reactants rau moles cov khoom muaj siv. Hauv kev suav loj, cov molar loj yog xav tau los hloov cov huab hwm coj mus rau moles.
Ib yam li ntawd ib tug yuav nug, dab tsi coefficients nyob rau hauv ib tug sib npaug sib npaug qhia peb cim txhua yam uas siv?
coefficients yog tseem ceeb los ua pov thawj txoj cai ntawm kev txuag ntawm pawg. Cov coefficients nyob rau hauv ib tug balanced tshuaj kev sib npaug qhia cov txheeb ze ntawm moles ofreactants thiab cov khoom. Los ntawm kev muab cov # ntawm moles ntawm cov tshuaj tiv thaiv los ntawm mole ratio. Koj tuaj yeem txiav txim siab tus naj npawb ntawm moles ntawm cov khoom.
Ib sab saum toj no, vim li cas thiaj li yuav tsum muaj kev sib npaug tshuaj sib npaug xaiv txhua yam uas siv Xaiv txhua yam uas siv rau hauv kev sib npaug tshuaj sib npaug ntawm cov coefficients nyob rau hauv pem hauv ntej ntawm txhua reactant thiab cov khoom tso cai rau peb kwv yees ntau npaum li cas reactants yuav tsum tau tsim ib tug npaum li cas ntawm cov khoom nyob rau hauv ib tug balanced. chemical equation cov coefficients? Hauv ib sib npaug tshuaj sib npaug, cov coefficients pem hauv ntej ntawm txhua reactant thiab cov khoom tso cai rau peb los kwv yees seb muab tshuaj tiv thaiv yog ua tau los tsis tau. Hauv ib balancedchemical equation, cov coefficients nyob rau hauv pem hauv ntej ntawm txhua reactant thiab cov khoom cia peb kwv yees seb cov tshuaj tiv thaiv xav tau ib tug catalyst los yog tsis.
Ua raws li qhov no hauv kev xav, cov ntaub ntawv dab tsi txog cov tshuaj tiv thaiv tshuaj yog muab los ntawm cov coefficients?
Tshuaj tiv thaiv yog sib npaug los ntawm kev ntxiv coefficients yog li ntawd tus naj npawb ntawm atoms ntawm txhua lub ntsiab yog tib yam ntawm ob sab. Stoichiometry piav qhia txog kev sib raug zoo ntawm tus nqi ntawm cov reactants thiab cov khoom hauv a tshuaj tiv thaiv.
Yuav ua li cas sib npaug tshuaj sib npaug qhia kev sib raug zoo ntawm cov reactants thiab cov khoom?
Stoichiometry yog raws nraim li ntawd. Nws yog qhovquantitative kev sib raug zoo ntawm tus naj npawb ntawm moles (thiab yog li ntawd loj) ntawm ntau yam cov khoom thiab reactants ib tshuaj tiv thaiv . Tshuaj cov tshuaj tiv thaiv yuav tsum yog sib npaug , los yog nyob rau hauv lwm yam lus, yuav tsum muaj tib tus naj npawb ntawm ntau yam atoms nyob rau hauv lub cov khoom zoo li hauv reactants.
Pom zoo:
Dab tsi yog cov khoom lag luam hauv kev sib npaug molecular rau kev ua tiav cov tshuaj tiv thaiv ntawm aqueous barium hydroxide thiab nitric acid?
Ba(OH)2 + 2HNO3 → Ba(NO3)2 + 2H2O. Barium hydroxide react nrog nitric acid los tsim barium nitrate thiab dej
Dab tsi coefficients koj tuaj yeem siv hauv kev sib npaug sib npaug?
Ua ntej: cov coefficients muab cov naj npawb ntawm cov molecules (los yog atoms) koom nrog cov tshuaj tiv thaiv. Hauv qhov piv txwv cov tshuaj tiv thaiv, ob lub molecules ntawm hydrogen react nrog ib molecule ntawm oxygen thiab tsim ob molecules ntawm dej. Thib ob: cov coefficients muab tus naj npawb ntawm moles ntawm txhua yam tshuaj koom nrog hauv cov tshuaj tiv thaiv
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
Vim li cas peb thiaj li kho cov coefficients thaum ntsuas cov tshuaj sib npaug thiab tsis yog cov ntawv sau npe?
Thaum koj hloov cov coefficients, koj tsuas yog hloov tus naj npawb ntawm cov molecules ntawm cov khoom tshwj xeeb. Txawm li cas los xij, thaum koj hloov cov ntawv sau npe, koj tab tom hloov cov tshuaj nws tus kheej, uas yuav ua rau koj qhov sib npaug tshuaj tsis raug
Dab tsi yog qhov tseem ceeb ntawm cov coefficients hauv kev sib npaug sib npaug?
Coefficients yog ib qho tseem ceeb los ua pov thawj txoj cai ntawm kev txuag ntawm huab hwm coj. Cov coefficients nyob rau hauv ib qho kev sib npaug ntawm cov tshuaj sib npaug qhia cov txheeb ze ntawm moles ofreactants thiab cov khoom. Los ntawm cov ntaub ntawv no, lub Cheebtsam ntawm reactants thiab cov khoom yuav raug xam. Koj tuaj yeem txiav txim seb tus lej ntawm moles ntawm cov khoom