Video: Puas yog ammonia daws acidic lossis alkaline?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ammonia yog ib tug qaug zog puag vim hais tias nws cov nitrogen atom muaj ib tug electron khub uas nkag tau ib tug proton. Tsis tas li ntawd, thaum yaj hauv dej, ammonia tau txais hydrogen ions los ntawm dej los tsim hydroxide thiab ammonium ions. Nws yog kev tsim cov hydroxide ions uas tso tawm ammonia nws cov yam ntxwv hauv paus.
Yog li ntawd, pH ntawm ammonia yog dab tsi?
Ammonia yog nruab nrab hauv paus, 1.0 M aqueous tov muaj a pH ntawm 11.6 thiab yog hais tias muaj zog acid ntxiv rau cov tshuaj no kom txog thaum cov tshuaj yog nruab nrab ( pH = 7), 99.4% ntawm ammonia molecules yog protonated.
Vim li cas ammonia muab faib ua alkali? nws kuj yuav xav li ib alkali (lub hauv paus) vim nyob rau hauv dej equilibrium, ammonia tuaj yeem rov qab dissociate hauv dej (H2O) thiab ammonium (NH3) uas yog ob qho tib si Brönsted-Lowry thiab Lewis puag - hauv thawj rooj plaub lees txais H + cation
Qhov thib ob, puas ammonia txo pH?
Cov pH ntawm Ammonia Txij li thaum pH yog lub cav tsis zoo ntawm hydrogen cation concentration, nce qhov no txo qis pH , negating qhov yooj yim me ntsis pH ntawm ammonia . Yog li ntawd thaum ammonia muaj ib qho yooj yim pH , cov txheej txheem uas tsim nws nyob rau hauv lub thoob dej yug ntses ua kom txaus hydrogen ions los kov yeej qhov no thiab qis tus pH.
Dab tsi yog pH ntawm aqueous ammonia?
nruab nrab ntawm 11 thiab 12
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