A 300 mL of 0.05M ammonia. The density of the solution is 0.88 g/mL. Pka pf ammonium = 9.255. What is the value for the dissociation constant of the base? 1.897x10^-4 1.459x10^-5 5.559x10^-10 1.799x10^-5 What is the hydroxyl concentration of the ammonia solution? 9.484x10^-4 M 5.272x10^-5 M 9.484x10^-5 M 5.272x10^-6 M What is the pOH of the ammonia solution?   4.023 5.278

General Chemistry - Standalone book (MindTap Course List)
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Chapter16: Acid-base Equilibria
Section: Chapter Questions
Problem 16.126QP: A solution is prepared from 0.150 mol of formic acid and enough water to make 0.425 L of solution. a...
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A 300 mL of 0.05M ammonia. The density of the solution is 0.88 g/mL. Pka pf ammonium = 9.255.

What is the value for the dissociation constant of the base?
1.897x10^-4
1.459x10^-5
5.559x10^-10
1.799x10^-5

What is the hydroxyl concentration of the ammonia solution?
9.484x10^-4 M
5.272x10^-5 M
9.484x10^-5 M
5.272x10^-6 M

What is the pOH of the ammonia solution?  
4.023
5.278
4.278
3.023

What is the pH of the ammonia solution? 
8.722
10.977
9.977
9.722

Which best characterizes the solution? 
Weak acid
Strong base
Strong acid
Weak base
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