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Concept explainers
(a)
Interpretation:
Concept introduction:
pH definition:
The concentration of hydrogen ion is measured using
The
Acid ionization constant
The equilibrium expression for the reaction
Where
Base ionization constant
The equilibrium expression for the ionization of weak base
Where
Relationship between
(a)
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Answer to Problem 19.53P
The pH of a given buffer solution after the addition of
Explanation of Solution
Given,
The balance chemical equation is given below,
The sodium ions on the product side are written as separate spices because they have no effect on
Calculate the volume of
Volume
Hence, the required volume of
Determination the moles of initially
At the equivalent point,
The
ICE Table of equilibrium,
Determination the liters of solution present at the equivalent point,
Volume
Concentration of
Molarity,
Next calculate
The equilibrium value for
So,
Using a reaction table for the equilibrium reaction of
Determination the hydroxide ion
Calculation for
(b)
Interpretation:
Concept introduction:
pH definition:
The concentration of hydrogen ion is measured using
The
Acid ionization constant
The equilibrium expression for the reaction
Where
Base ionization constant
The equilibrium expression for the ionization of weak base
Where
Relationship between
(b)
![Check Mark](/static/check-mark.png)
Answer to Problem 19.53P
The pH of a given buffer solution after the addition of
The second equivalent pH of a given buffer solution after the addition of
Explanation of Solution
The titration of a diprotic acid such as
So,
The balance chemical equation is given below,
The sodium ion on the product side is written as separate spices because they have no effect on
The volume of
The solution requires an equal volume to reach second equivalence point
Determination the moles of
Determination the liters of solution present at the first equivalent point,
Volume
Concentration of
Molarity,
The
To calculate
Calculate
The equilibrium value for
The equilibrium value for,
Calculate for first equivalent point:
Following the reaction table for the equilibrium reaction of
Determination the hydrogen ion concentration from
Here, x is very small compared with
Calculation for
Calculation for second equivalent point
The balanced equation for neutralization of
A total of
Determination the liters of solution present at the second equivalent point,
Volume
Determination the concentration of
Molarity,
Calculate
Calculate for second equivalent point:
Following the reaction table for the equilibrium reaction of
Determination the hydrogen ion concentration from the
Here, x is very small compared with
Calculation for
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Chapter 19 Solutions
CHEMISTRY >CUSTOM<
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