Qhov sib txawv tseem ceeb ntawm 1.0 molar tov thiab 1 molal tov yog tias 1.0 molar tov muaj ib tug mole ntawm solute yaj nyob rau hauv cov tshuaj whereas 1 molal tov muaj ib tug mole ntawm solutes yaj nyob rau hauv ib kilogram ntawm tov.
Ntev dhau los, Avogadro xav tias muaj tus lej tshwj xeeb uas sawv cev rau tus lej ntawm atoms lossis molecules hauv ib lub mole ntawm cov khoom. Yog li, ib lub mole ntawm txhua lub ntsiab lus muaj qhov sib npaug ntawm cov atoms, tsis hais txog qhov hnyav atomic ntawm lub caij ntawd. Yog li ntawd, cov ntsiab lus ntawm molarity thiab molality kuj tau tsim los piav qhia txog cov ntsiab lus ntawm cov kuab tshuaj hauv cov tshuaj. Thaum molarity yog ntsuas ntawm ib tug xov tooj ntawm moles ntawm cov kua nyob rau hauv ib liter ntawm kev daws, molality yog tus naj npawb ntawm moles nyob rau hauv 1 kg ntawm cov tshuaj. Li no, nws yooj yim kom paub qhov txawv ntawm 1.0 molar tov thiab 1 molal tov.
Dab tsi yog 1.0 Molar Solution?
A 1.0 molar tov yog cov tshuaj uas muaj ib qho mole ntawm cov kuab tshuaj yaj hauv ib liter ntawm cov tshuaj. Tsis tas li ntawd, qhov no yog lub ntsiab lus ntawm kev xav, thiab peb hu nws "molarity" ntawm kev daws.
Daim duab 01: Cov kev daws teeb meem sib txawv muaj qhov sib txawv Molarities thiab Mollities
Lub cim rau lo lus no yog "M". Qhov ntsuas qhov ntsuas yog mol / L. Piv txwv li, ib qho aqueous 1.0 molar tov ntawm NaCl (sodium chloride) txhais tau hais tias cov tshuaj sodium chloride uas muaj ib mole ntawm NaCl yaj hauv ib liter dej.
1 Moolal Solution yog dab tsi?
A 1 molal tov yog ib qho tshuaj uas muaj ib qho mole ntawm cov kuab tshuaj yaj hauv ib kilogram ntawm cov tshuaj. Yog li, chav ntsuas ntsuas yog mol / kg.
Daim duab 02: A 1 Mollal Solution ntawm Aqueous Sodium Chloride Solution muaj ib mole ntawm NaCl hauv ib kilogram dej.
Ntxiv mus, qhov no kuj yog lub ntsiab lus ntawm kev xav uas peb hu ua "molality" ntawm kev daws. Peb tuaj yeem txhais los ntawm "m". Piv txwv li, 1 molal tov ntawm sodium chloride txhais tau hais tias cov tshuaj aqueous ntawm NaCl muaj ib mole NaCl yaj hauv ib kilogram dej.
Qhov txawv ntawm 1.0 Molar Solution thiab 1 Molar Solution yog dab tsi?
A 1.0 molar tov yog cov tshuaj uas muaj ib tug mole ntawm ib tug solute yaj nyob rau hauv ib liter ntawm tov whereas A 1 molal tov yog ib tug tov uas muaj ib tug mole ntawm ib tug solute yaj nyob rau hauv ib kilogram ntawm ib tug tov. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm 1.0 molar thiab 1 molal tov. Tsis tas li ntawd, chav ntsuas ntawm 1.0 molar tov yog mol / L thaum 1 molal tov yog mol / kg. Txawm li cas los xij, yog tias dej yog qhov hnyav, tsis muaj qhov sib txawv ntawm 1.0 molar tov thiab 1 molal tov. Nws yog vim hais tias, nyob rau hauv chav tsev kub, qhov ceev ntawm cov dej yog npaum li cas yog 1 kg / L. Yog li, qhov no ua rau molarity thiab molality ntawm kev daws kom sib npaug.
Summary – a 1.0 Molar Solution vs a 1 Moll solution
Molarity thiab molality yog cov ntsiab lus tseem ceeb hauv chemistry uas peb siv los ntsuas qhov concentration ntawm cov tshuaj. Qhov sib txawv tseem ceeb ntawm 1.0 molar tov thiab 1 molal tov yog tias 1.0 molar tov muaj ib mole ntawm solute yaj hauv cov tshuaj. Whereas, 1 molal tov muaj ib mole ntawm solutes yaj nyob rau hauv ib kilogram ntawm tov.
