100 ml of 0.1 M HCl and 100 ml of 0.1 M HOCN are mixed . What is the concentrationof .. OCN ^(-)..,and pH of the solution ?(K_a=1.2 xx 10^(-6) )

100 ml of 0.1 M HCl and 100 ml of 0.1 M HOCN are mixed . What is the c

1.	100 ml of 0.1 M HCl and 100 ml of 0.1 M HOCN are mixed . What is the concentrationof .. OCN ^(-)..,and pH of the solution ?(K_a=1.2 xx 10^(-6) )
Answer» <html><body><p>` <a href="https://interviewquestions.tuteehub.com/tag/1-256655" style="font-weight:bold;" target="_blank" title="Click to know more about 1">1</a>.2 xx <a href="https://interviewquestions.tuteehub.com/tag/10-261113" style="font-weight:bold;" target="_blank" title="Click to know more about 10">10</a>^(-6), 1.3 ` <br/>` 1.2 xx 10^(-6),1` <br/>` 2.6 xx 10^(-8),1.6` <br/>` 2.4 xx 10^(-6), 2.6` </p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :`[H^(+)]= (100 xx 0.1 )/(200)=0.05,pH =2- log 5 =13` <br/>`[HOCN]=( 100xx 0.1 )/( 200) = 0.05` <br/>` K_a =([H^(+) ][OCN^(-) ])/( [HOCN])=(1.2 xx 10 ^(-6) xx 0.05 )/( 0.05 ) ` <br/> ` = [OCN^(-) ]=1.2 xx 10^(-6) `</body></html>