ZuoTi.Pro
Question

Phosphoric acid is triprotic with the step-wise dissociation shown below. A 1.75 M phosphoric acid solution...

Phosphoric acid is triprotic with the step-wise dissociation shown below. A 1.75 M phosphoric acid solution is prepared. Calculate the equilibrium concentrations of the species indicated. Report all answers in scientific notation using 2 sig figs. Rather than use the quadratic equation, you can make assumptions like we do in class (ie if K<<1, then 0.1-x ~ 0.1). Please fill in blanks below all species. Please answer each equilibrium concentration of each species in scientific notation.

H3PO4H3PO4 + H2OH2O ↔↔ H2PO−4H2PO4-   + H3O+H3O+ Ka1=7.5x10^−3
  
H2PO−4H2PO4-    + H2OH2O ↔↔ HPO2−4HPO42- + H3O+H3O+ Ka2=6.2x10^-8
HPO2−4HPO42- + H2OH2O ↔↔ PO3−4PO43- + H3O+H3O+ Ka3=4.8x10^-13
             
science   chemistry   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

0 0
Add a comment
Know the answer?
Add Answer to:
Phosphoric acid is triprotic with the step-wise dissociation shown below. A 1.75 M phosphoric acid solution...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • Phosphoric acid is triprotic with the step-wise dissociation shown below. A 1.90 M phosphoric acid solution...

    Phosphoric acid is triprotic with the step-wise dissociation shown below. A 1.90 M phosphoric acid solution is prepared. Calculate the equilibrium concentrations of the species indicated. Report all answers in scientific notation using 2 sig figs. Rather than use the quadratic equation, you can make assumptions like we do in class (ie if K<<1, then 0.1-x 0.1) НаО + Kal = 7.5x10-3 H2PO Н,О+ НЗРОД Preview Preview Preview НаО + 8 Ka2= 6.2x10 НРО% НаРОД НЗО+ Preview Preview НаО +...

  • Phosphoric acid is triprotic with the step-wise dissociation shown below. A 1.34 M phosphoric acid solution is prep...

    Phosphoric acid is triprotic with the step-wise dissociation shown below. A 1.34 M phosphoric acid solution is prepared. Calculate the equilibrium concentrations of the species indicated. Report all answers in scientific notation using 2 sig figs. Rather than use the quadratic equation, you can make assumptions like we do in class (ie if K<<1, then 0.1-x -0.1) H3PO HO H.PO H3O Kai = 7.5c10-3 Preview Preview Preview H.PO H20 HPo? + H50+ K - 6.2:10 -* Preview Preview HPO H2O...

  • Phosphoric acid, H3PO4, is a triprotic acid with the following acid dissociation constants: Ka1 = 7.5 × 10-3   Ka2 = 6.2...

    Phosphoric acid, H3PO4, is a triprotic acid with the following acid dissociation constants: Ka1 = 7.5 × 10-3   Ka2 = 6.2 × 10-8   Ka3 = 4.2 × 10-13 Which of the following combinations would be best for preparing a pH 7 buffer? a. H3PO4 and NaH2PO4 b. H3PO4 and HCl c. Na2HPO4 and Na3PO4 d. NaH2PO4 and Na2HPO4 e. H3PO4 and Na3PO4

  • What is the pH of a 6.00 M H3PO4 solution? Ka1= 7.5x10^-3 Ka2= 6.2x10^-8 Ka3= 4.2x10^-13 Pearson retur Learn Ch...

    What is the pH of a 6.00 M H3PO4 solution? Ka1= 7.5x10^-3 Ka2= 6.2x10^-8 Ka3= 4.2x10^-13 Pearson retur Learn Ch 17: Acids and Bases QUESTION ANSWER 2.12 Weak acids and bases are those that do not completely dissociate in water. The dissociation of the acid or base is an equilibrium process and has a corresponding equilibrium constant. K is the equilibrium constant for the dissociation of a weak acid and K is the equilibrium constant for the dissociation of a...

  • (3 points) A 0.0730 M solution of a monoprotic acid is 1.07% ionized. What is the...

    (3 points) A 0.0730 M solution of a monoprotic acid is 1.07% ionized. What is the pH of the solution? Calculate the Ka of the acid. (2 points) The pH of a 0.025 M solution of a monoprotic acid is 3.21. What is the Ka value for the acid? (2 points) Determine the percent ionization of a 0.0028 M HA solution. (Ka of HA = 1.4 x 10-9) (4 points) Lysine is triprotic amino acid (separately loses three H’s in...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT