I need answer expert solutionsI need answer step by step A solution is prepared at 25 °C that is initially 0.12M in trimethylamine ((CH3)2N), a weak base with K=7.4 x 104, and 0.095M in trimethylammoniumNHCI). Calculate the pH of the solution. Round your answer to 2 decimal places.chloride((CH,), NHCI).GpH = 0G

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Answered: A solution is prepared at 25 °C that is…

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter15: Additional Aqueous Equilibria

Section: Chapter Questions

Problem 124QRT

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Calculate the pH of each of the following solutions. (a) 10.0 mL of 0.300 M hydrofluoric acid plus 30.0 mL of 0.100 M sodium hydroxide (b) 100.0 mL of 0.250 M ammonia plus 50.0 mL of 0.100 M hydrochloric acid (c) 25.0 mL of 0.200 M sulfuric acid plus 50.0 mL of 0.400 M sodium hydroxide
Amino acids are an important group of compounds. At low pH, both the carboxylic acid group (CO2H) and the amine group (NHR) are protonated. However, as the pH of the solution increases (say, by adding base), the carboxylic acid proton is removed, usually at a pH between 2 and 3. In a middle range of pHs, therefore, the amine group is protonated, but the carboxylic acid group has lost the proton. (This is called a zwitterion.) At more basic pH values, the amine proton is dissociated. What is the pH of a 0.20 M solution of alanine hydrochloride, [NH3CHCH3CO2H]Cl?
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Consider all acid-base indicators discussed in this chapter. Which of these indicators would be suitable for the titration of each of these? (a) NaOH with HClO4 (b) acetic acid with KOH (c) NH3 solution with HBr (d) KOH with HNO3 Explain your choices.
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A solution is prepared at 25 °C that is initially 0.12M in trimethylamine ((CH3)2N), a weak base with K=7.4 x 104, and 0.095M in trimethylammonium NHCI). Calculate the pH of the solution. Round your answer to 2 decimal places. chloride ((CH,), NHCI). G pH = 0 G