8. Lactic acid has a pKa of 3.08. What is the approximate degree of dissociation of a 0.35 M solution of lactic acid? A...

Question

Question

8. Lactic acid has a pKa of 3.08. What is the approximate degree of dissociation of a 0.35 M solution of lactic acid? A. 1.1%

science chemistry

Answer 1

✔ Recommended Answer

Answer #1

Let take a lactic pka_ -log ka 23:08 acid as: HA kazloupka = 10 3-08 2 8.32 x104 HATHO - Hot to [Hot] [A] ka [HA] 2 0-35- 8.3

Answer 2

Similar Homework Help Questions

7. Butyric acid is responsible for the odor in rancid butter. A solution of 0.25 M...

7. Butyric acid is responsible for the odor in rancid butter. A solution of 0.25 M butyric acid has a pH of 2.71. What is the Ka for the acid? A. 0.36 B. 2.4 x 10-2 C. 7.8 x 10-3 D. 1.5 x 10-5 E. None of these choices are correct. 8. Lactic acid has a pKa of 3.08. What is the approximate degree of dissociation of a 0.35 M solution of lactic acid? A. 1.1% B. 2.2% C. 4.8%...
27. What is the pH of an aqueous solution that contains 0.35 M of lactic acid,...

27. What is the pH of an aqueous solution that contains 0.35 M of lactic acid, HC3H5O2, (Ka = 4.4 X 10 -4 ) and 0.55 M of Nat C3H5O2 - ? a. 2.77 b. 3.55 C. 4.65 d. 7.35 e. 5.89
1. The pKa of boric acid is 9.24. What is the value of the dissociation constant?...

1. The pKa of boric acid is 9.24. What is the value of the dissociation constant? 2. What molarity of botanic acid (pKa = 4.82) would have a pH of 3.0? 3. A 0.08 M solution of an acid is 0.04% ionized. What is the pKa? 4. Butyric acid has a pKa of 4.82. a) what is the pH of 0.20 Butyric acid? b) what is the value of pKb for this compound? c) using the pKb from part b)...

Consider a 8×10−2 M solution of the weak acid lactic acid , for which pKa = 3.86 ....

Consider a 8×10−2 M solution of the weak acid lactic acid , for which pKa = 3.86 . 1. Calculate the concentration of lactate ions. 2. Calculate the concentration of lactic acid in equilibrium.
What is the answer for 11, 12, and 14? and please show how you calculate it!...

What is the answer for 11, 12, and 14? and please show how you calculate it! 11). (4 pts) What is the approximate degree of dissociation of a 0.5 M solution of butyric acid? 10g LHT Butyric acid is responsible for the odor in rancid butter and has a pKa of 4.82. 109ci.61x(0 A) 0.55 % B)4.5 % C) 5.5 % D) 99.9% E) None of these choices are correct. 12). (4 pts) has a pH of 1.9. What is...
Name: ID: A 3. The dissociation of lactic scid is shown below: 0 OH он Lactic...

Name: ID: A 3. The dissociation of lactic scid is shown below: 0 OH он Lactic Acid Lactate Lactic acid has a pKa of 3.86 a. Which side of this equation is favored within a cell? Why? 3points) b. Draw in the appropriate orientation of water molecules on the most soluble side of the reaction. (2 points) A solution containing a mixture of lactie acid and lactate was found to have a pH of 3.67 c. Calculate the ratio of...

28. Lactic Acid (HC3H5O3) has a pKa of 3.1. What is the pH of an aqueous...

28. Lactic Acid (HC3H5O3) has a pKa of 3.1. What is the pH of an aqueous solution 1 initial concentration of 0.050 M of HC3H03? (A) | යි.}=-baka 2.20 3.10 0.90 1.30 0.81 ol=- 09 -2017)"font- | e" – – k,
What is the pH of a 1.00 L solution containing 0.295 M lactic acid, HC3H5O3 (pKa...

What is the pH of a 1.00 L solution containing 0.295 M lactic acid, HC3H5O3 (pKa = 3.86) and 0.295 M sodium lactate, NaC3H5O3, upon the addition of 0.055 mol HCl? Assume no significant volume change occurs.
1. Calculate the pKa of lactic acid, given that when the concentration of lactic acid is...

1. Calculate the pKa of lactic acid, given that when the concentration of lactic acid is 0.010 M and the concentration of lactate is 0.087 M, the pH is 4.80 B. Calculate the ratio of the concentrations of acetate and acetic acid required in a buffer system of pH 5.30 C The pH of a 0.20 M sodium acetate buffer is 5.1. The pKa of acetic acid is 4.76. Explain in details (showing all calculation) how to prepare the buffer...

A weak acid has a dissociation constant of Ka = 2.50×10−2. A. Calculate the degree of dissociation for a 9.7×10−2 m solu...

A weak acid has a dissociation constant of Ka = 2.50×10−2. A. Calculate the degree of dissociation for a 9.7×10−2 m solution of this acid using the Debye-Huckel limiting law. B. Calculate the degree of dissociation for a 9.7×10−2 m solution of this acid that is also 0.200 m in KCl from the Debye-Huckel limiting law using an iterative calculation until the answer is constant in the second decimal place. C. Repeat the calculation in (B) using the value of...