Ammonium buffer tov rau complexometry (ammonium chloride / ammonia) pH =10-11.
Dab tsi yog ammoniacal buffer?
Cov khoom no tseem hu ua Ammoniacal Buffer, Dissolve 90 g ntawm ammonium chloride hauv375 mL ntawm 28-30% ammonium hydroxide, thiab dilute rau 500 mL nrog dej. (PH ntawm 1 + 10 dilution nrog dej yuav tsum yog li 10.)
PH ntawm cov tshuaj tsis haum yog dab tsi?
Ib tug tsis muaj carbonic acid (H
2CO3) thiab bicarbonate (HCO3 −) yog xav tau hauv cov ntshav ntshav kom tswj tau pH nruab nrab ntawm 7.35 thiab 7.45 Kev lag luam, cov kev daws teeb meem tsis yog siv hauv cov txheej txheem fermentation thiab teeb tsa qhov tseeb tej yam kev mob rau dyes siv nyob rau hauv colouring fabrics.
Yuav ua li cas yog cov mis rau ib qho ammoniacal buffer?
Cov tsis yog tsim los ntawm kev sib cais 2.7 g ammonium chloride ( NH 4Cl ) hauv 17.8 mL concentrated ammonia (NH 3, 16 M) thiab diluting rau 100 mL nrog dej distilled.
Koj ua li cas pH 10 ammonia buffer?
Ammonia Buffer pH 10.0: Dissolve 5.4 g ntawm ammonium chloride hauv 20 ml dej, ntxiv 35 ml ntawm 10 M ammonia thiab dilute nrog dej rau 100 ml.
