🤓 Based on our data, we think this question is relevant for Professor Costanza's class at USF.
HClO4 → strong acid
pH = 1.398 (same pH as CCl3CO2H)
Remember that weak acids partially dissociate in water and that acids donate H+ to the base (water in this case).
The dissociation of CCl3CO2H is as follows:
CCl3CO2H(aq) + H2O(l) ⇌ H3O+(aq) + CCl3CO2–(aq)
Solving for [H3O+] from pH:
[H3O+] = 0.040 M
Trichloroacetic acid (CCl3CO2H) is a corrosive acid that is used to precipitate proteins. The pH of a 0.050-M solution of trichloroacetic acid is the same as the pH of a 0.040-M HClO4 solution. Calculate Ka for trichloroacetic acid.
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Our tutors have indicated that to solve this problem you will need to apply the Weak Acids concept. If you need more Weak Acids practice, you can also practice Weak Acids practice problems.
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Based on our data, we think this problem is relevant for Professor Costanza's class at USF.
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Our data indicates that this problem or a close variation was asked in Chemistry: An Atoms First Approach - Zumdahl 2nd Edition. You can also practice Chemistry: An Atoms First Approach - Zumdahl 2nd Edition practice problems.