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Chem question, homework due tomorrow

  • Thread starter feelau
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  • #1
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Homework Statement


Kk so the problem is that we have 55.48 ml of NaOH was required to titrate 25 mL of a weak monoprotic acid. After 31.64 mL of NaOH had been added, the pH is 4.96 for the solution. Calculate the Ka and pKa for this weak acid.

Homework Equations


pKa= pH + log(acid/conjugate base) maybe?
ka=products/reactants

The Attempt at a Solution


I wanted to make the NaOh and acid a ratio and then since we know what pH is, just use the first equation but I don't think that'll be correct. Other than that I'm not sure how to approach this. Help will be aprreciated thanks
 

Answers and Replies

  • #2
chemisttree
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Not enough info. What is the concentration of NaOH?
 
  • #3
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the concentration isn't given, I copied the exact problem.
 
  • #4
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nevermind, i found out how to solve it
 

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