Video: Dab tsi yog qhov concentration ntawm hydronium ions hauv dej ntshiab?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
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.
Pom zoo:
Cov dej ua haujlwm ntawm cov dej ntshiab yog dab tsi?
Kev ua dej num yog ua raws li qhov ntsuas ntawm 0 txog 1.0, nrog rau cov dej ntshiab muaj tus nqi ntawm 1.00. Nws txhais tau tias yog lub vapor siab ntawm cov dej tshaj ib qho piv txwv muab faib los ntawm lub vapor siab ntawm cov dej ntshiab ntawm qhov kub thiab txias. Nyob rau hauv lwm yam lus, qhov ntau unbound dej peb muaj, qhov muaj feem ntau peb muaj microbial spoilage
Dab tsi yog qhov txawv ntawm qhov sib txawv ntawm qhov sib txawv thiab qhov sib txawv ntawm qhov ntab?
Integers thiab floats yog ob yam sib txawv ntawm cov ntaub ntawv tus lej. Ib tus lej (feem ntau hu ua anint) yog tus lej tsis muaj tus lej lej. Float isa floating-point number, uas txhais tau hais tias nws yog tus lej uas muaj tus lej lej. Floats siv thaum xav tau ntau dua
Dab tsi yog qhov tseem ceeb tshaj plaws uas yuav tsum muaj rau cov kua dej ntws hauv cov kav dej Dab tsi lwm yam cuam tshuam rau cov dej ntws?
Thaum ib qho kev quab yuam sab nraud yog exerted rau ntawm cov kua uas muaj, qhov tshwm sim siab yog kis sib npaug thoob plaws hauv cov kua. Yog li txhawm rau kom dej ntws, dej xav tau qhov sib txawv siab. Cov kav dej kuj tuaj yeem cuam tshuam los ntawm cov kua dej, cov yeeb nkab loj, qhov kub thiab txias (cov kav dej khov), cov kua dej ntom ntom
Dab tsi yog qhov concentration ntawm hydronium ions nyob rau hauv ib qho kev daws teeb meem?
Cov dej ntshiab yog suav tias yog nruab nrab thiab qhov concentration ntawm hydronium ion yog 1.0 x 10-7 mol / L uas yog sib npaug rau hydroxide ion concentration
Dab tsi yog cov ions nyob rau hauv siab tshaj plaws concentration nyob rau hauv lub extracellular kua?
Cov tshuaj no nyob rau hauv cov kua dej extracellular thiab intracellular. Nyob rau hauv cov kua dej extracellular, cov cation loj yog sodium thiab cov anion loj yog chloride. Qhov loj cation nyob rau hauv cov kua dej intracellular yog poov tshuaj. Cov electrolytes no ua lub luag haujlwm tseem ceeb hauv kev tswj hwm homeostasis