Video: Dab tsi yog qhov concentration ntawm hydronium ions nyob rau hauv ib qho kev daws teeb meem?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov dej ntshiab yog suav tias yog nruab nrab thiab cov hydronium ion concentration yog 1.0x10-7 mol / L uas yog sib npaug rau hydroxide ion concentration.
Ua raws li qhov no hauv kev txiav txim siab, koj yuav pom qhov concentration ntawm hydronium ions li cas?
Cov hydronium ion concentration tuaj yeem pom los ntawm pH los ntawm kev thim rov qab ntawm kev ua lej ua haujlwm los nrhiav pH. [H3O+] = 10-pH lossis [H3O+] = antilog (- pH) Piv txwv: Dab tsi yog qhov hydronium ion concentration hauv cov tshuaj uas muaj pH ntawm 8.34? On ib tshuab xam zauv , xam 10-8.34, lossis "inverse" log (- 8.34).
Ib yam li ntawd, pH cuam tshuam li cas rau qhov concentration ntawm hydronium ions hauv kev daws? pH . Yog tias hydronium concentration nce, cov pH txo, ua rau daws ua kom acidic. Qhov no tshwm sim thaum muaj kua qaub. Raws li H+ ions dissociate los ntawm cov kua qaub thiab daim ntawv cog lus nrog dej, lawv tsim hydronium ions , yog li nce lub hydronium concentration ntawm daws.
Ua raws li qhov xav tau, qhov concentration ntawm hydronium thiab hydroxide ions hauv dej ntshiab ntawm 25 C yog dab tsi?
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.
Qhov kev daws teeb meem nruab nrab yog dab tsi?
Los ntawm txhais, a nruab nrab daws yog a daws uas muaj pH ntawm 7. Nws tsis yog acidic (pH 7), tab sis nyob rau hauv nruab nrab, los yog nruab nrab.
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