View the step-by-step solution to:

588 g sample of a diprotic acid with a molar mass of 255.8 g/mol is dissolved in water to a total volume of 23. The solution is then titrated with a...

A 0.588 g sample of a diprotic acid with a molar mass of 255.8 g/mol is dissolved in water to a total volume of 23.0 mL. The solution is then titrated with a saturated calcium hydroxide solution.



Assuming that the pKa values for each ionization step are sufficiently different to see two equivalence points, determine the volume of added base for the first and second equivalence points.



The pH after adding 23.0 mL of the base was 3.82. Find the value of pKa1.



The pH after adding 17.0 mL past the first equivalence point was 8.19. Find the value of pKa2.

Top Answer

Great question... View the full answer

1 comment
  • rate my answer please.
    • okiyaiomuse
    • Apr 04, 2018 at 10:54am

Sign up to view the full answer

Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors.

-

Educational Resources
  • -

    Study Documents

    Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access.

    Browse Documents
  • -

    Question & Answers

    Get one-on-one homework help from our expert tutors—available online 24/7. Ask your own questions or browse existing Q&A threads. Satisfaction guaranteed!

    Ask a Question
Ask a homework question - tutors are online