A 25.0 mL sample of a 0.1900 M solution of aqueous trimethylamine is titrated with a 0.2375 M solution of HCl. Calculate the pH of the solution after 30.0 mL of acid have been added; pKb of (CH3)3N = In a base, the hydrogen ion concentration is ___ than the hydroxide ion c...
Carbonic acid is a weak acid in aqueous solution; Ka for the first acid ionization is equal to 4.2 x 10-7. Calculate pKb for the hydrogen carbonate ion HCO3-. a. 5.2 b. 8.9 c. 6.4 d. 4.2 e. 7.6 When solutions of carbonic acid and sodium hydro...
Decide on the pH for your buffer. This pH should be within one pH unit from the pKa of the acid/conjugate base. So, you can prepare a buffer at pH 2 or pH 7, for example, but pH 9 would be pushing it. Use theHenderson-Hasselbachequation to calculate how much acid and base you ...