Video: Koj pom qhov sib npaug ntawm h2so4 li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Sib npaug qhov hnyav tuaj yeem xam los ntawm molarmasses Yog hais tias chemistry ntawm cov khoom yog paub zoo: sulfuric acid muaj ib molar loj ntawm 98,078 (5) gmol−1, thiab muab ob molesofhydrogen ions ib mole ntawm sulfuric acid , suav sib npaug yog 98,078(5)gmol−1/2 eqmol−1 = 49.039(3) txq−1.
Raws li, tus qauv ntawm qhov sib npaug yog dab tsi?
Nws yog ib qho yooj yim mus nrhiav tus sib npaug mass forthesecompounds: faib cov molar pawg ntawm cov compound bythevalence ntawm lub caij sib txawv ntawm cov pa oxygen los ntawm tus naj npawb ofitsatoms. Cia peb saib ntawm sib npaug mass rau kub oxide nrog rau qauv ua 2o3. Nrog kev suav yooj yim peb tau txais: 1972 + 163 faib los ntawm 3 * 2 = 73.7 g / mol.
Tsis tas li ntawd, qhov sib npaug ntawm HCl yog dab tsi? Piv txwv. 1) Yog 'gram- sib npaug qhov hnyav ntawm HCl ib mole of HCl (1.008 + 35.453 = 36.461 g). 2) Thegram- sib npaug ntawm H2YOG4isusually ½ mole vim tias ob qho tib si hydrogens yog hloov tau inmostreactions ntawm sulfuric acid.
Kuj tseem paub yog, koj pom qhov hnyav molecular ntawm h2so4 li cas?
Qhov no tshuaj yog siv raws li ib tug tshuaj intermediate los tsim lwm yam tshuaj thiab ntxuav metalsurfaces. Cov qauv rau sulfuric acid yog H2SO4 . Cov molar loj ntawm sulfuric acid yog 98,7848g mol.
Koj pom qhov sib npaug ntawm NaOH li cas?
Cov sib npaug loj ntawm NaOH yog 40g. Itisacording rau lub qauv , Gram molecular hnyav muab faib los ntawm 'n' factor. 'n' yam yuav yog 1vim hais tias nyob rau hauv cov ntaub ntawv ntawm ionic tebchaw peb yuav tsum tau coj tag nrho cov nqi tam sim no ntawm ib hom ntawm xws li cov cation los yog ntawm theanion.
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
Qhov sib npaug sib npaug rau qhov nruab nrab ntawm h2so4 los ntawm Koh yog dab tsi?
Hauv daim vis dis aus no peb yuav sib npaug ntawm qhov sib npaug KOH + H2SO4 = K2SO4 + H2O thiab muab cov coefficients raug rau txhua qhov sib xyaw. Txhawm rau sib npaug KOH + H2SO4 = K2SO4 + H2O koj yuav tsum nco ntsoov suav tag nrho cov atoms ntawm txhua sab ntawm cov tshuaj sib npaug
Nws puas yuav ua rau pom qhov sib npaug ntawm kab sib npaug mus rau ib kab thiab los ntawm ib qho taw tes ntawm kab?
Qhov sib npaug ntawm ib kab uas yog parallel lossis perpendicular rau ib kab? Cov lus teb tau: Cov nqes hav ntawm cov kab sib npaug sib npaug. Hloov txoj kab nqes paub thiab cov kev sib koom ua ke ntawm ib qho taw tes ntawm lwm txoj kab rau hauv daim ntawv point-slope kom pom qhov sib npaug ntawm kab sib npaug
Yuav ua li cas koj pom qhov sib npaug ntawm qhov nqus ntawm qhov nqus?
X = [Fe(SCN)2+] thiab yuav tsum tau txiav txim los ntawm tus qauv nkhaus. Tom qab ntawd koj tuaj yeem xam qhov sib npaug tas li, Keq, siv qhov sib npaug sib npaug. Tus qauv nkhaus yog ib zajlus ntawm Absorbance piv [Fe(SCN)2+] (Daim duab 8.1). Nws tuaj yeem siv los muab peb cov concentration ntawm cov tshuaj thaum muab cov absorbance
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