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A solution is prepared at 25 °C that is initially 0.18M in dimethylamine ((CH3)₂NH), a bromide ((CH3)2NH₂ Br). Calculate the pH of the solution. Round your answer to 2 decimal places. pH = X , a weak base with K₁=5.4 x 104, and 0.40M in dimethylammonium S de

A solution is prepared at 25 °C that is initially 0.18M in dimethylamine ((CH3)₂NH), a bromide ((CH3)2NH₂ Br). Calculate the pH of the solution. Round your answer to 2 decimal places. pH = X , a weak base with K₁=5.4 x 104, and 0.40M in dimethylammonium S de

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Certainly! Here is the transcription suitable for an educational website: --- **Calculating the pH of a Buffer** A solution is prepared at 25°C that is initially 0.18 M in dimethylamine \(((CH_3)_2 NH)\), a weak base with \(K_b = 5.4 \times 10^{-4}\), and 0.40 M in dimethylammonium bromide \(((CH_3)_2 NH_2Br)\). Calculate the pH of the solution. Round your answer to 2 decimal places. **pH =** [Input box] Buttons: - [x] (Clear Input) - [↻] (Reset) Options: - [Explanation] - [Check] --- There are no graphs or diagrams in this image.
Transcribed Image Text:Certainly! Here is the transcription suitable for an educational website: --- **Calculating the pH of a Buffer** A solution is prepared at 25°C that is initially 0.18 M in dimethylamine \(((CH_3)_2 NH)\), a weak base with \(K_b = 5.4 \times 10^{-4}\), and 0.40 M in dimethylammonium bromide \(((CH_3)_2 NH_2Br)\). Calculate the pH of the solution. Round your answer to 2 decimal places. **pH =** [Input box] Buttons: - [x] (Clear Input) - [↻] (Reset) Options: - [Explanation] - [Check] --- There are no graphs or diagrams in this image.
Expert Solution
Step 1

Given, 

Concentration of dimethylamine = [(CH3)2NH] = 0.18 M

Concentration of dimethyl ammonium bromide = [(CH3)2NH2Br] = 0.40 M

Kb = 5.4 × 10-4

pH of the solution = ?

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