Find pH of 0.1 M NaHCO_(3), (P^(kal) & p^(kal) "of" H_(2),CO_(3) are 7 & 11)

Find pH of 0.1 M NaHCO_(3), (P^(kal) & p^(kal) "of" H_(2),CO_(3) are 7

1.	Find pH of 0.1 M NaHCO_(3), (P^(kal) & p^(kal) "of" H_(2),CO_(3) are 7 & 11)
Answer» <P> SOLUTION :For amphoteric salts LIKE ` NaHCO_3 ,pH =(P^(Ka_1) +P^(Ka_2))/( 2)=( 7+11)/(2) = 9`