A solution is prepared at 25 °C that is initially 0.43 M in dimethylamine ((CH3)2NH), a weak base with Kb = 5.4 × 10^-4, and

Question

A solution is prepared at 25 °C that is initially 0.43 M in dimethylamine ((CH3)2NH), a weak base with Kb = 5.4 × 10^-4, and 0.012M in dimethylammonium bromide ((CH3)2NH₂ Br). Calculate the pH of the solution. Round your answer to 2 decimal places.
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