Concept explainers
(a)
Interpretation:
Concept introduction:
An equilibrium constant
For the general base B,
The relative strength of an acid and base in water can be also expressed quantitatively with an equilibrium constant as follows:
An equilibrium constant
Percent dissociation can be calculated by using following formula,
The
(a)
Explanation of Solution
Given,
Cyanide ion is a base therefor it can accept the proton from the water.
Potassium cyanide dissociates into potassium ions (
The balance equation is given below,
Therefore,
ICE table:
Initial concentration | 0.150 M | - | 0 | 0 |
Change | -x | + x | + x | |
At equilibrium | 0.150-x | x | x |
The initial concentration is
Given,
X is small when compared to
The dissociation value is very less and valid
(b)
Interpretation:
Concept introduction:
An equilibrium constant
For the general base B,
The relative strength of an acid and base in water can be also expressed quantitatively with an equilibrium constant as follows:
An equilibrium constant
Percent dissociation can be calculated by using following formula,
The
(b)
Explanation of Solution
Given,
Triethylammonium chloride dissociates into quartnary ammonium ion (
The balance equation is given below,
Therefore,
ICE table:
Initial concentration | 0.40 M | - | 0 | 0 |
Change | -x | + x | + x | |
At equilibrium | 0.40-x | x | x |
The initial concentration is
Given,
X is small when compared to
The dissociation value is very less and it is valid,
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Chapter 18 Solutions
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