WebJul 22, 2024 · When you become comfortable with the simple two-step method, you can combine steps and simply divide your given mass by the given volume to get the result directly. Thus, if you had 1.73 grams of KBr in 0.0230 L of water, your concentration would be: ( ( 1.73 g) × 1 m o l e 119 g 0.0230 L) = 6.32 m o l e s / L o r 0.632 M WebJul 20, 2024 · pKa(HA) + pKb(A −) = pKw. Thus the product of the acid constant for a weak acid and the base constant for the conjugate base must be Kw, and the sum of p Ka and p Kb for a conjugate acid-base pair is 14. Equation 14.7.4 or 14.7.8 enables us to calculate the base constant of a conjugate base from the acid constant of the acid, and vice versa.
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WebOct 17, 2016 · What is the pH of 0.35 M K OBr solution? Chemistry Acids and Bases pH 1 Answer anor277 Oct 17, 2016 You need to provide pKa for hypobromous acid. Explanation: We wish to assess the equilibium: KOBr(aq) +H 2O(l) ⇌ H OBr(aq) + H O−(aq) Kb = [H O−][H OBr] [−OBr] Without the Kb value we are shot birds. Web1. Calculate the pH of a 0.10 M KBr solution. This salt contains K+ and Br−. Alkali metal cations do not have any acid strength in water. Br− is the conjugate base of HBr, a strong … greensboro men\u0027s soccer
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WebApr 10, 2024 · pH = 8.60 + (-0.34) pH = 8.26 NOTE: You could have done this problem without dividing by 2.0 L and just have used 0.160 mol / 0.350 mol. You can do this because the volume didn't change, but it's a good habit/practice to convert to M concentrations in case you run into a problem where the volume does change. Upvote • 0 Downvote Add … WebDec 10, 2006 · Predict whether an aqueous solution of KBr will be acidic, basic, or neutral. Homework Equations KBr(s) → K+(aq) + Br-(aq) Br-(aq) + H2O(l) ← HBr(aq) + H3O+(aq) … WebO A When NaF is dissolved in water, the pH of the solution will be less than 7. B, when KBr is dissolved in water, the pH of the solution will be greater than 7. o CWhen NH4Cl is dissolved in water, the pH of the solution will be less than 7. O D. :When KC2H302 is dissolved in water, the pH will be equal to 7. This problem has been solved! f may be used uninitialized in this function