This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The dissociation equilibrium constants for the protonated form of alanine (a diprotic amino acid, ... (Read 136 times)

rlane42

  • Hero Member
  • *****
  • Posts: 594
on: Feb 15, 2020

Question 1

Oxalic acid, H2C2O4 has acid dissociation constants Ka1 = 5.9 × 10-2 and Ka2 = 6.4 × 10-5. What is the pH after 20.00 mL of 0.0500 M NaOH is added to 5.00 mL of 0.2000 M H2C2O4?
◦ 2.80
◦ 2.10
◦ 1.23
◦ 4.19

Question 2

The dissociation equilibrium constants for the protonated form of alanine (a diprotic amino acid, H2X+) are Ka1 = 4.6 × 10-3 and Ka2 = 2.0 × 10-10. What is the pH of 50.00 mL of a 0.0500 M solution of alanine after 25.00 mL of 0.100 M NaOH has been added?
◦ 5.59
◦ 4.85
◦ 6.72
◦ 2.34
Chemistry ¦ McMurry, Fay, Robinson ¦ 7th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by rlane42 on Feb 15, 2020

aidanmbrowne

  • Sr. Member
  • ****
  • Posts: 305
Reply #1 on: Feb 15, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 29% of students answer this correctly


rlane42

  • Member
  • Posts: 594
Reply 2 on: Feb 15, 2020
Thanks for the timely response, appreciate it

pratush dev

  • Member
  • Posts: 321
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

More than 4.4billion prescriptions were dispensed within the United States in 2016.

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

DNA molecules replicate to form identical chromatids DNA molecules replicate to form identical chromatids
A sample encounter form. A sample encounter form.
Major biosynthetic roles of some citric acid cycle intermediates Major biosynthetic roles of some citric acid cycle intermediates
How to sketch a quadratic equation that is in standard form (Question 2) How to sketch a quadratic equation that is in standard form (Question 2)
Three active forms of vitamin A: all-trans-retinol, -retinal, and –retinoic acid Three active forms of vitamin A: all-trans-retinol, -retinal, and –retinoic acid
Acid–Base Balance Acid–Base Balance
Video: Oxygen - hemoglobin dissociation curve & Hemoglobin's affinity with oxygen - acidity

For a complete list of videos, visit our video library