JEE Main Chemistry question

ChemistryEquilibriumJEE Main

A weak acid of dissociation constant is being titrated with (aq.) solution. What is the value of pH at the point of one-third neutralization of the acid?

Answer: 3.7

Solution

At neutralization, ratio of salt:acid .

pH = +() = 4+(-0.301) = 3.699

Question ID VK-136614