A 10.0mL solution of aspirin (weak monoprotic acid) required 8.4mL  Of 0.0245M NaOH to reach endpoint. After the addition of 4.20 mL, the pH was measured to be 3.46  A) What is the Ka of the aspirin based on this data?  b) Calculate the concentration of the aspirin solution

Fundamentals Of Analytical Chemistry
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ISBN:9781285640686
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Chapter13: Titrations In Analytical Chemistry
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Problem 13.18QAP
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2. A 10.0mL solution of aspirin (weak monoprotic acid) required 8.4mL 
Of 0.0245M NaOH to reach endpoint. After the addition of 4.20 mL, the pH was measured to be 3.46 

A) What is the Ka of the aspirin based on this data? 

b) Calculate the concentration of the aspirin solution (use ice box)

 

 

 

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