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In general, aquatic biota seems to thrive best in water containing less than 50 mg/L of sulfate ion. The toxicity of sulfuric acid towards aquatic life is a function of the resulting pH. In other words, a dose that would be lethal in distilled water or soft water might be harmless in highly buffered water.
29 Αυγ 2023 · Most sulfates, including those of \(\ce{Na^{+}}\), \(\ce{K^{+}}\), and \(\ce{NH4^{+}}\), are soluble in water. Exceptions that are insoluble are white lead(II) sulfate and white barium sulfate: \[\ce{BaSO4(s) <=> Ba2+(aq) + SO42-(aq)} \nonumber \] with \(K_{sp} = 1.4 \times 10^{-8}\) \[\ce{PbSO4(s) <=> Pb2+(aq) + SO42-(aq)} \nonumber \]
There are several tests for sulfate ion to identify from other anions in qualitative analysis. Some of metal sulfate compounds are soluble in water and some metal sulfates form precipitates. Sulfate compounds of several d block metal cations form colours.
For example, the anion in many sparingly soluble salts is the conjugate base of a weak acid that may become protonated in solution. In addition, the solubility of simple binary compounds such as oxides and sulfides, both strong bases, is often dependent on pH.
25 Ιουλ 2024 · With this pH calculator, you can determine the pH of a solution in a few ways. It can convert pH to H +, as well as calculate pH from the ionization constant and concentration. The pH value is an essential factor in chemistry, medicine, and daily life. Read the text below to find out what is the pH scale and the pH formula. In the end, we will ...
13 Ιαν 2024 · CH 3CO − 2 (aq) + H 2O(l) ⇌ CH 3CO 2H(aq) + OH − (aq) Kb = Kw / Ka. Because acetic acid is a weak acid, its Ka is measurable and Kb > 0 (acetate ion is a weak base). Dissolving sodium acetate in water yields a solution of inert cations (Na +) and weak base anions (CH 3CO − 2), resulting in a basic solution.
