2) I need help with part b The degree to which a weak base dissociates is given by thebase-ionization constant, Kp. For the generic weak base, BB(aq) + H20(1) = BH+(aq) + OH (aq)this constant is given by[BH ][OH ]B]KbStrong bases will have a higher K, value. Similarly, strongbases will have a higher percent ionization value.[OH ] equilibriumB initialx 100%Percent ionizationStrong bases, for which Kp is very large, ionize completely(100%). For weak bases, the percent ionization changeswith concentration. The more dilute the solution, the greaterthe percent ionization. Ammonia, NH3, is a weak base with a K, value of 1.8 x 10-5.Part AWhat is the pH of a 0.440 M ammonia solution?Express your answer numerically to two decimal places.• View Available Hint(s)pH = 11.45SubmitPrevious AnswersCorrectPart BWhat is the percent ionization of ammonia at this concentration?Express your answer with the appropriate units.> View Available Hint(s)µA圈]% ionization =ValueSubmitPrevious Answers Request AnswerX Incorrect; Try Again; 5 attempts remainingProvide Feedback

Given: The given concentration of NH3=0.44 M Kb=1.8×10-5 If an aqueous solution of NH3 is made then…

ong will have a higher K value. bases will have a higher percent ionization [OH ] equilib B initial Percent ionization = Strong bases, for which Kp is very large, ion (100%). For weak bases, the percent innizat

ong will have a higher K value. bases will have a higher percent ionization [OH ] equilib B initial Percent ionization = Strong bases, for which Kp is very large, ion (100%). For weak bases, the percent innizat

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter8: Polyfunctional Acids And Bases

Section: Chapter Questions

Problem 4P

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Micelles and Biological Membrane

Micelles are the type of lipid molecules that organize themselves in spherical shape in aqueous solutions. The production of the micelle is a reply to the amphipathic behavior of fatty acids. It means that they consist of both hydrophobic regions and hydrophilic regions. In micelles, polar head groups (hydrophilic groups) produce an outer layer associated with water whereas nonpolar tails (hydrophobic groups) are organized in the interior.

Question

2) I need help with part b

The degree to which a weak base dissociates is given by the
base-ionization constant, Kp. For the generic weak base, B
B(aq) + H20(1) = BH+(aq) + OH (aq)
this constant is given by
[BH ][OH ]
B]
Kb
Strong bases will have a higher K, value. Similarly, strong
bases will have a higher percent ionization value.
[OH ] equilibrium
B initial
x 100%
Percent ionization
Strong bases, for which Kp is very large, ionize completely
(100%). For weak bases, the percent ionization changes
with concentration. The more dilute the solution, the greater
the percent ionization.

Ammonia, NH3, is a weak base with a K, value of 1.8 x 10-5.
Part A
What is the pH of a 0.440 M ammonia solution?
Express your answer numerically to two decimal places.
• View Available Hint(s)
pH = 11.45
Submit
Previous Answers
Correct
Part B
What is the percent ionization of ammonia at this concentration?
Express your answer with the appropriate units.
> View Available Hint(s)
µA
圈]
% ionization =
Value
Submit
Previous Answers Request Answer
X Incorrect; Try Again; 5 attempts remaining
Provide Feedback

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