Video: Muaj pes tsawg hydrogen ions muaj nyob rau hauv ib liter dej?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Daim npav
| Lub sij hawm thaum ib acid reacts dab tsi tebchaw tsim? | Txhais a 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 |
| Lub sij hawm dab tsi yog qhov concentration ntawm hydronium ions hauv a nruab nrab daws? | Lus Txhais 10^-7 M |
Tseem yuav paub yog, muaj pes tsawg hydrogen ions nyob rau hauv cov dej ntshiab?
Dab tsi yog qhov muaj pes tsawg leeg ntawm dej . Dab tsi yog qhov kev sib raug zoo ntawm cov concentration ntawm hydrogen ions thiab pH? pH yog qhov ntsuas ntawm H+ ions hauv dej . Dej ntshiab (raws li tau piav qhia saum toj no) muaj tus lej sib npaug ntawm hydrogen ions thiab hydroxyl ions (1 x 10-7 moles ib liter).
Qhov thib ob, qhov concentration ntawm hydrogen ions yog dab tsi? Hydrogen ion concentration yog yooj yim dua qhia raws li pH, uas yog lub logarithm ntawm reciprocal ntawm lub hydrogen ion concentration nyob rau hauv grams moles ib liter. Yog li, nyob rau hauv ib tug nruab nrab kev daws teeb meem hydrogen ion (H+) thiab hydroxyl ion (OH−) concentrations sib npaug, thiab txhua qhov sib npaug li 10−7. Lub pH ntawm 7 yog nruab nrab.
Kuj tseem paub, pes tsawg H + ions nyob hauv pH 2?
A pH ntawm 2 yog li ntawd, qhia kaum zaus tsawg dua hydrogen ions dua ib pH ntawm 1, pH 3 muaj kaum zaus hydrogen ions tshaj pH 2 thiab ib puas npaug tsawg dua hydrogen ions tshaj pH 1.
Muaj pes tsawg hydrogen ions tam sim no nyob rau hauv ib qho kev daws ntawm pH 5?
Ib yam li ntawd, a daws nrog a pH ntawm 5 muaj 10- 5 mol/l os hydrogen ions , a daws nrog a pH ntawm 6 muaj 10-6mol/l os hydrogen ions , thaum lub daws nrog a pH ntawm 7 muaj 10-7mol/l os hydrogen ions.
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