A solution of weak acid was titrated with base NaOH. The equivalence point was reached when 36.12 mL of 0.1M NaOH have been added. Now 18.06mL 0.1M HCI were added to titrated solution, the pH was found to be 4.92. What is K_(a) of acid ?

A solution of weak acid was titrated with base NaOH. The equivalence p

1.	A solution of weak acid was titrated with base NaOH. The equivalence point was reached when 36.12 mL of 0.1M NaOH have been added. Now 18.06mL 0.1M HCI were added to titrated solution, the pH was found to be 4.92. What is K_(a) of acid ?
Answer» <html><body><p><br/></p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :`1.2xx10^(-<a href="https://interviewquestions.tuteehub.com/tag/5-319454" style="font-weight:bold;" target="_blank" title="Click to know more about 5">5</a>);`</body></html>