Question

Arrange the following in the increasing order of their acid strengrh
Propanoic acid, ethanol acid, 2- fluor ethanol acid, 2-chloroethanoic acid, dichloroethanoic acid.

Answer 1

Answer on Question #72936 – Chemistry – Organic Chemistry

Task:

Arrange the following in the increasing order of their acid strength.

Propanoic acid, ethanoic acid, 2-fluoroethanoic acid, 2-chloroethanoic acid, dichloroethanoic acid.

Solution:

The lower the value of $pK_a$ - the stronger the acid.

Then,

Acids in the increasing order of their acid strength:

propanoic acid < ethanoic acid < 2-chloroethanoic < 2-fluoroethanoic acid < dichloroethanoic acid.