Question

a weak monobasic acid is half neutralized by a strong base. if pH of the solution is 5.4 then pka Value is??

Answer 1

Answer:

If weak monobasic acid is half neutralized by a strong base. if pH of the solution is 5.4 then pka Value is 5.4

Answer 2

The value of Pka of the resulting solution of a weal acid neutralized by a strong base will be equal to 5.4

• When a base is added to an acid it forms a salt and water.
• A solution containing a weak acid and its salt with a strong base acts as an acidic buffer solution.
• pH of acidic buffer solution is equal to pKa + log([salt]/[acid])
• since [salt] is equal to [acid], pH will be equal to pKa of the acid.