Dab tsi yog qhov concentration ntawm hydronium ions hauv dej ntshiab?
Dab tsi yog qhov concentration ntawm hydronium ions hauv dej ntshiab?

Video: Dab tsi yog qhov concentration ntawm hydronium ions hauv dej ntshiab?

Video: Dab tsi yog qhov concentration ntawm hydronium ions hauv dej ntshiab?
Video: Qhov Mantra no yuav pab kom dim ntawm teeb meem 2024, Kaum ib hlis
Anonim

Dej ntshiab suav tias yog nruab nrab thiab hydronium ion concentration yog 1.0x10-7 mol / L uas yog sib npaug rau hydroxide ion concentration . Yog li pH yog lub log ntawm [ hydronium ion ].

Ntawm no, dab tsi yog qhov hydronium ion concentration ntawm cov dej ntshiab ntawm 25c?

Hauv dej ntshiab, ntawm 25C , [H3O+] thiab [OH-] ion concentrations yog 1.0x10-7 M. Tus nqi ntawm Kw ntawm 25C ua yog li 1.0 x 10-14. Txawm hais tias Kw yog txhais nyob rau hauv cov nqe lus ntawm dissociation ntawm dej , qhov sib npaug ntawm qhov kev qhia tsis tu ncua yog sib npaug rau kev daws cov acids thiab cov hauv paus yaj hauv dej.

Qhov thib ob, cov dej ntshiab puas muaj hydronium ions? Hauv dej ntshiab , muaj qhov sib npaug ntawm hydroxide thiab hydronium ions , yog li ntawd nws yog ib qho kev daws teeb meem nruab nrab.

Tom qab ntawd, qhov concentration ntawm hydronium ions zoo li cas?

Yuav ua li cas yog lub concentration ntawm hydronium ion cuam tshuam thaum lub acid yog diluted? Cov concentration ntawm hydronium ions txo qis thaum cov kua qaub yog diluted vim yog ntxiv dej H + ions acid thiab hydroxyl ions ntawm dej react tsim dej molecules thiab cov concentration ntawm hydronium ions txo.

Dab tsi ions muaj nyob hauv dej ntshiab?

Nyob rau hauv cov ntaub ntawv ntawm dej ntshiab , yeej ib txwm muaj tib tus naj npawb ntawm hydrogen ions thiab hydroxide ions . Qhov ntawd txhais tau tias cov dej tseem nyob nruab nrab - txawm tias nws cov pH hloov.

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