Video: Qhov concentration ntawm H + yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hauv qhov no txhais tau tias tus concentration ntawm hydrogen ions, los yog [ H +], yog 1.5M. Lub hauv paus muaj zog, ntawm qhov tod tes, muaj hydroxide ions ntau dua hydrogen ions.
Ua kom pom qhov no, qhov concentration ntawm H + yog dab tsi?
Yog li, cov concentration ntawm hydrogen ions raws nraim tib yam li cov concentration ntawm cov kua qaub. Teb: [H+]= 0.03 M. pH = - log (0.03) pH = 1.5.
Ib sab saum toj no, qhov concentration ntawm H + ions ntawm pH 7 yog dab tsi? Cov pH scale pib los ntawm 1 yog acidic tshaj plaws rau 14 yog qhov yooj yim tshaj plaws. Qhov nruab nrab pH yog 7 . Yog li ntawd, rau a pH ntawm 7 , cov H+ thiab OH- concentrations sib npaug. Txij li thaum concentrations yog sib npaug, qhov ratio yog sib npaug rau 1.
Yog li ntawd, H + concentration hauv dej yog dab tsi?
Hauv ntshiab dej , hydrogen ion concentration , [H+], sib npaug ntawm hydroxide ion concentration , [OH-]. Cov no concentrations tuaj yeem xam los ntawm qhov sib npaug rau ionization ntawm dej . Lub pH ntawm ntshiab dej yog 7, lub logarithm tsis zoo ntawm 1 X 10-7. Ib qho tshuaj nruab nrab yog ib qho uas tsis yog acidic lossis yooj yim.
Kuv yuav xam qhov concentration ntawm cov tshuaj li cas?
Faib qhov loj ntawm lub solute los ntawm tag nrho cov ntim ntawm lub daws . Sau tawm qhov sib npaug C = m / V, qhov m yog qhov loj ntawm qhov solute thiab V yog tag nrho ntim ntawm daws . Txuas rau qhov tseem ceeb uas koj pom rau qhov loj thiab ntim, thiab faib rau lawv nrhiav tus concentration ntawm koj daws.
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