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On adding of naoh to ch3cooh solution ,60% of the acid is neutralize.if pka of ch3cooh is 4.7 then pH of the resulting solution will be?
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On adding of naoh to ch3cooh solution ,60% of the acid is neutralize.i...
pH of the resulting solution after adding NaOH to CH3COOH solution
Introduction:
When NaOH is added to a solution of CH3COOH (acetic acid), a neutralization reaction takes place. The reaction can be represented as follows:
CH3COOH + NaOH → CH3COONa + H2O
The reaction shows that one molecule of CH3COOH reacts with one molecule of NaOH to form one molecule of CH3COONa (sodium acetate) and one molecule of water.
Given:
60% of the acetic acid is neutralized after adding NaOH.
pKa of CH3COOH = 4.7
Calculating the concentration of the remaining acetic acid:
Since 60% of the acetic acid is neutralized, it means that 40% of the acid remains unreacted.
Therefore, if the initial concentration of acetic acid is denoted as [CH3COOH]0, the concentration of the remaining acetic acid is:
[CH3COOH]remaining = 0.4 × [CH3COOH]0
Calculating the concentration of sodium acetate:
Since the reaction between CH3COOH and NaOH is 1:1, the concentration of sodium acetate formed is equal to the concentration of acetic acid neutralized.
[CH3COONa] = 0.6 × [CH3COOH]0
Calculating the pH of the resulting solution:
The pH of a solution can be calculated using the Henderson-Hasselbalch equation:
pH = pKa + log ([A-]/[HA])
Where [A-] is the concentration of the conjugate base (sodium acetate) and [HA] is the concentration of the acid (acetic acid).
Substituting the values into the equation, we have:
pH = 4.7 + log ([CH3COONa]/[CH3COOH]remaining)
pH = 4.7 + log (0.6 × [CH3COOH]0 / (0.4 × [CH3COOH]0))
pH = 4.7 + log (0.6 / 0.4)
pH = 4.7 + log (1.5)
pH = 4.7 + 0.18
pH ≈ 4.88
Conclusion:
The pH of the resulting solution after adding NaOH to the CH3COOH solution is approximately 4.88.
Community Answer
On adding of naoh to ch3cooh solution ,60% of the acid is neutralize.i...
More than 4.7 but less than 5.0
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On adding of naoh to ch3cooh solution ,60% of the acid is neutralize.if pka of ch3cooh is 4.7 then pH of the resulting solution will be?
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On adding of naoh to ch3cooh solution ,60% of the acid is neutralize.if pka of ch3cooh is 4.7 then pH of the resulting solution will be? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about On adding of naoh to ch3cooh solution ,60% of the acid is neutralize.if pka of ch3cooh is 4.7 then pH of the resulting solution will be? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for On adding of naoh to ch3cooh solution ,60% of the acid is neutralize.if pka of ch3cooh is 4.7 then pH of the resulting solution will be?.
On adding of naoh to ch3cooh solution ,60% of the acid is neutralize.if pka of ch3cooh is 4.7 then pH of the resulting solution will be? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about On adding of naoh to ch3cooh solution ,60% of the acid is neutralize.if pka of ch3cooh is 4.7 then pH of the resulting solution will be? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for On adding of naoh to ch3cooh solution ,60% of the acid is neutralize.if pka of ch3cooh is 4.7 then pH of the resulting solution will be?.
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