2022年10月1日 · The second dissociation constant is disputed [1], but because the pH will be acidic, you can neglect dissociation of the second proton. It will have negligible effect on the …

Hydrogen sulfide is actually relatively strongly soluble in water compared with other low-polarity gases. In Earth Science SE, this answer explains that water-ice hydrates are most likely to be …

2019年5月15日 · The pH of a mixture of HX2S H X 2 S solution with HCl H C l solution is about the same as the corresponding mixture of water with HCl H C l solution. The reason is that …

2021年6月22日 · I was doing the following question yesterday: Calculate the pH of a 0.1 M solution of NHX4HS, given pKb of NHX3 is 4.74, and pKa1 and pKa2 of HX2S are 7.04 and …

2023年12月15日 · Does a pH range exist allowing to completely precipitate one metal (i.e. the remaining concentration of the precipitated ion has to be 10−5 mol/L 10 − 5 m o l / L or less) …

2014年7月23日 · Next, why can't this method of calculating pH in amphoteric acids be used for diprotic acids? I found another page that details how to do so but even though the reactions …

2019年1月5日 · Why can the acidic strength between H2S and HCl be explained on the basis of electronegativity but H2S and H2O can't?

2021年4月4日 · There is direct relation between pH and relative ratio carbon dioxide : bicarbonate : carbonate. pH ( in usual aquarium range ) is directly determined carbon dioxide / bicarbonate …

2020年11月9日 · Acidic KMnO4 oxidizes H2S to S. Why doesn't the oxidation proceed further to sulfur oxide, sulfur dioxide or sulfur trioxide?

To actually find the pH of a diprotic acid, you either assume that the first dissociation goes to completion or that the second dissociation is too weak to occur. In general, a large K a1 value …