Video: Vim li cas qhov kev daws teeb meem yooj yim muaj H + ions?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Qhov laj thawj yog tias dej ntawm nws tus kheej faib rau hauv hydrogen thiab hydroxide ions . Thaum a daws yog heev yooj yim , ntxiv hydroxide ions yuav react nrog ib qho hydronium yuav luag sai li sai tau thaum nws tsim. Yog li cov concentration ntawm hydrogen ions tsawg heev, thiaj li tsawg ua tau feem ntau yuav tsis quav ntsej.
Hais txog qhov no, dab tsi yog cov tshuaj hu ua uas muaj ntau OH ions H + ions?
Acid yog a daws nrog ntau H+ ions tshaj OH - ions . Cov kua qaub yog ib qho sib xyaw ua ke uas ua rau hydrogen ions ( H+ ) los yog hydronium ions (H3O +) thaum yaj hauv dej. Hydronium ions - yog kev sib xyaw ntawm H+ ions thiab H2O molecules.
Tom qab ntawd, lo lus nug yog, H + ions yog dab tsi? Hydrogen ion , nruj me ntsis, lub nucleus ntawm a hydrogen atom sib cais los ntawm nws nrog electron. Cov hydrogen nucleus yog tsim los ntawm ib tug particle nqa ib chav tsev zoo hluav taws xob, hu ua proton (q.v.). Qhov cais hydrogen ion , sawv cev los ntawm lub cim H+, yog li kev cai siv los sawv cev rau proton.
Ua raws li qhov no, puas cov kev daws teeb meem tseem muaj H ions piav qhia vim li cas qhov yooj yim los ntawm kev ua piv txwv?
ions zoo li OH? ions . yog H ? ion concentration ntau dua OH? ion ces cov daws yog acidic. Thiab lawv qhia yooj yim tus cwj pwm yog OH? ion concentration yog ntau tshaj H ? ion concentration. Qhov ntawd txhais tau tias lawv yog yooj yim vim muaj ntau OH- ions.
Cov kua qaub puas muaj OH ions?
Hauv chemistry, acids thiab bases muaj tau txhais txawv los ntawm peb pawg ntawm kev xav. Ib qho yog Arrhenius txhais, uas tig los ntawm lub tswv yim tias acids yog cov khoom uas ionize (slov tawm) nyob rau hauv ib tug aqueous daws los tsim hydrogen (H+) ions thaum bases tsim hydroxide ( OH -) ions hauv daws.
Pom zoo:
Puas yog cov tebchaw uas tsim H + ions hauv kev daws?
Cov kua qaub yog cov tshuaj sib xyaw uas tso tawm hydrogen ions (H +) thaum muab tso rau hauv dej. Piv txwv li, thaum hydrogen chloride tso rau hauv dej, nws tso nws cov hydrogen ions thiab cov tshuaj ua hydrochloric acid. Bases yog cov tshuaj sib txuas uas nyiam hydrogen atoms thaum lawv muab tso rau hauv dej
Dab tsi yog qhov sib xyaw ua ke uas tsim cov hydrogen ions hauv kev daws teeb meem?
Kua qaub. compound uas tsim hydrogen ions hauv kev daws. puag. compound uas tsim hydroxide ions hauv kev daws. tsis pub
Muaj pes tsawg hydrogen ions muaj nyob rau hauv ib liter dej?
Daim Npav Lub Sijhawm Thaum cov kua qaub reacts cov tebchaw twg tsim? Txhais lus ntsev thiab dej Lub sij hawm muaj pes tsawg hydrogen ions muaj nyob rau hauv ib liter dej? txhais tsis muaj; Lawv tag nrho cov hydrated Term Dab tsi yog qhov concentration ntawm hydronium ions nyob rau hauv ib tug nruab nrab tov? Lus Txhais 10^-7 M
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
Vim li cas ho muaj qhov zoo thiab tsis zoo ions tsim?
Vim li cas cov ions zoo thiab tsis zoo ions tsim? Ib qho zoo ions yog tsim los ntawm kev tshem tawm theelectron's los ntawm lub atom, thiab ib qho tsis zoo ion yog tsim los ntawm kev txais hluav taws xob los ntawm lub atom. Ob qhov zoo thiab tsis zoo ions yog tsim los ntawm kev hloov ntawm electrons, lub negativeicon yog repelled rau lub ntiaj teb