
To:
a) Determine aminoethanol is a stronger or weaker base than ethylamine.
b) Calculate
c) Calculate the

Answer to Problem 15.61QA
Solution:
a) Aminoethanol is a weaker base than ethylamine.
b)
c)
Explanation of Solution
1) Concept:
We are calculating the
Here,
2) Formulae:
i)
ii)
iii)
iv)
v)
3) Given:
i)
ii)
iii)
iv)
4) Calculations:
a) To compare the Kb values of aminoethanol and ethylamine.
Here we see that
b) To calculate the pH of aminoethanol from the given concentration and RICE table.
RICE table for the given reaction:
Reaction | ||||
Initial(I) | ||||
Change(C) | ||||
Equilibrium(E) |
Therefore,
To solve for
So check the reliability of this
The ratio of the smaller initial partial pressure to the value of
This value is less than
c) To calculate the [OH-] from the given concentration.
RICE table for the given reaction:
Reaction | ||||
Initial(I) | ||||
Change(C) | ||||
Equilibrium(E) |
Therefore,
Solving this quadratic equation for x yields a positive value and a negative value.
We can get two values of
We will use the positive value of
Conclusion:
We have compared the
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Chapter 15 Solutions
CHEM:ATOM FOC 2E CL (TEXT)
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