Video: Qhov formula m1v1 m2v2 yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Koj tuaj yeem daws qhov concentration lossis ntim ntawm cov concentrated lossis dilute tov siv cov kev sib npaug : M1V 1 = M2V 2 Qhov twg M1 yog qhov concentration hauv molarity (moles / Litres) ntawm cov tshuaj concentrated, V2 yog qhov ntim ntawm cov tshuaj concentrated, M2 yog qhov concentration hauv molarity ntawm cov tshuaj dilute (tom qab).
Ib yam li ntawd, koj yuav nug, vim li cas m1v1 m2v2 ua haujlwm?
Nws tsuas yog qhov concentration uas hloov pauv thiab ntim uas hloov pauv. Tus naj npawb ntawm moles ntawm solute tseem nyob tas li tshwj tsis yog tias koj ntxiv ntau ntawm cov solute! Yog li kev sib raug zoo raws li qhov tseeb tus naj npawb ntawm moles ntawm cov kua yuav nyob twj ywm, tab sis qhov concentration thiab ntim ntawm tag nrho cov tshuaj tuaj yeem hloov pauv.
Tom qab, lo lus nug yog, koj siv n1v1 n2v2 mis li cas? N1V 1 (HCl) = N2V 2 (Na2CO3) los yog N1 × 10 = 0.2 × 25 ∴ N1 = 5 / 10 = 0.5 N Normality × Qhov hnyav sib npaug = Lub zog hauv grams ib liter. Luas = 0.5 x 36.5 = 18.25. Lub zog ntawm HCl tov yog 18.25 grams ib liter.
Tsis tas li ntawd, tus qauv rau titration yog dab tsi?
Siv cov titration formula . Yog hais tias tus titrant thiab analyte muaj ib tug 1: 1 mole ratio, lub qauv yog molarity (M) ntawm cov kua qaub x ntim (V) ntawm cov kua qaub = molarity (M) ntawm lub hauv paus x ntim (V) ntawm lub hauv paus. (Molarity yog qhov concentration ntawm cov tshuaj qhia raws li tus naj npawb ntawm moles ntawm solute ib liter ntawm kev daws.)
Koj siv m1v1 m2v2 li cas?
Koj tuaj yeem daws qhov concentration lossis ntim ntawm cov concentrated lossis dilute tov siv qhov sib npaug: M1V 1 = M2V 2 Qhov twg M1 yog qhov concentration hauv molarity (moles / Litres) ntawm cov tshuaj concentrated, V2 yog qhov ntim ntawm cov tshuaj concentrated, M2 yog qhov concentration hauv molarity ntawm cov tshuaj dilute (tom qab).
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