Calculate Degree of Dissociation & pH of 0.1M Propionic Acid

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SUMMARY

The discussion focuses on calculating the degree of dissociation and pH of 0.1M propionic acid, with a dissociation constant (Ka) of 1.34 x 10^-5 at 25 degrees Celsius. The calculated degree of dissociation is 0.115, resulting in a pH of 2.93. Participants share methods for determining the degree of dissociation using the dissociation constant and concentration of the acid.

PREREQUISITES
  • Understanding of acid dissociation constants (Ka)
  • Basic knowledge of pH calculations
  • Familiarity with equilibrium expressions
  • Concept of degree of dissociation in weak acids
NEXT STEPS
  • Learn how to derive the degree of dissociation formula for weak acids
  • Study the Henderson-Hasselbalch equation for pH calculations
  • Explore the relationship between concentration and pH in weak acid solutions
  • Investigate the impact of temperature on dissociation constants
USEFUL FOR

Chemistry students, educators, and professionals involved in acid-base chemistry, particularly those focusing on weak acids and their dissociation properties.

shaiqbashir
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Hi Guys!


Dissociation constant of propionic acid at 25 degree celsius is 1.34 x 10^-5. Calculate the degree of dissociation and pH om 0.1M acid.

Ans: degree of dissociation=0.115
pH=2.93

now my dear friends i have calculated the pH already from the formual correctly. Now please tell me that how can i find this degree of dissociation because i don't know any formula in finding it out.PLease help.
 
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