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One liter of a 0.1M Tris buffer (pKa=8.3) is adjusted to a pH of 2.0. A)...

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Chemistry

One liter of a 0.1M Tris buffer (pKa=8.3) is adjusted to a pH of2.0. A) What are the concentrations of the conjugate base and weakacid at this pH? B) What is the pH when 1.5mL of 3.0M HCl is addedto this buffer? Is Tris a good buffer at this pH? Why? C) What isthe pH when 1.5mL of 3.0M NaOH is added to this buffer?

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3.6 Ratings (372 Votes)
PartA Given concentration of Tris buffer ie Tris buffer 01 M also Tris buffer Conjugate base Acid 01 M Conjugate base Acid Acid 01 M Conjugate base 1 Now from HendersonHasselbalch equation we have pH pKa log Conjugate base Acid 20 83 log Conjugate base Acid log Conjugate base Acid 20 83 log Conjugate base    See Answer
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