Calculating the [H+] and pH of a lactic acid solution

  • Thread starter Thread starter biochemstuden
  • Start date Start date
  • Tags Tags
    Acid Ph
Click For Summary
SUMMARY

The discussion focuses on calculating the hydrogen ion concentration ([H+]) and pH of a 0.05 M lactic acid solution, with a given acid dissociation constant (Ka) of 1.39 x 10-4. Participants clarify that the Henderson-Hasselbalch equation is not applicable in this scenario, as it is primarily used for buffer solutions. Instead, the calculation involves using the formula derived from the acid dissociation constant to find [H+]. The conversation highlights the importance of distinguishing between different types of chemistry students when approaching such problems.

PREREQUISITES
  • Understanding of acid-base chemistry
  • Familiarity with the concept of pH and [H+]
  • Knowledge of the Henderson-Hasselbalch equation
  • Basic algebra for solving equations
NEXT STEPS
  • Learn how to calculate pH from [H+] concentration
  • Study the derivation and application of the acid dissociation constant (Ka)
  • Explore the differences between strong and weak acids
  • Investigate buffer solutions and their calculations
USEFUL FOR

Chemistry students, particularly those studying acid-base equilibria, and anyone interested in the calculations related to weak acids like lactic acid.

biochemstuden
Messages
2
Reaction score
0
How do I calculate the [H+] fo a 0.05 M lactic acid solution. The Ka of the lactic acid is
1.39 X 10-4



is this a henderson - hasselbalch equation?
 
Physics news on Phys.org
Somehow I feel like I have already answered this question somewhere else...

You have to decide whether you are orgostudent or biochemstudent :wink:
 
both :)

thanks!
 

Similar threads

  • · Replies 16 ·
Replies
16
Views
3K
  • · Replies 8 ·
Replies
8
Views
2K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 3 ·
Replies
3
Views
3K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
Replies
4
Views
2K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 2 ·
Replies
2
Views
2K