If the equlibrium constant for the reaction of weak acid HA with strong base is 10^(9) then calculate the pH of 0.1 M NaA.

If the equlibrium constant for the reaction of weak acid HA with stron

1.	If the equlibrium constant for the reaction of weak acid HA with strong base is 10^(9) then calculate the pH of 0.1 M NaA.
Answer» SOLUTION :`K_n =10 ^(9), K_h =(1)/( K_n)= 10 ^(9) ` ` K_a =(K_W)/( K_h)= 10 ^(-5) rArr PH =7 +(P^(K_a))/( 2) + (1)/(2) LOG C ` ` =7 +(5)/(2) +(1)/(2) log 10 ^(-1)= 9`