The P^(H)of an aqueous solution of NH_4 CN( K_a of HCN is 9.2 xx 10^(-10)& K_b of NH_4 OHis 1.8 xx 10^(-5))

The P^(H)of an aqueous solution of NH_4 CN( K_a of HCN is 9.2 xx 10^(-

1.	The P^(H)of an aqueous solution of NH_4 CN( K_a of HCN is 9.2 xx 10^(-10)& K_b of NH_4 OHis 1.8 xx 10^(-5))
Answer» ` GT 7` ` lt 7` ` 7` ` 14` Solution :` pH =7+ ( (PKA- pKb)/(2) )` ` =7+[( (10 -LOG 9.2)- (5 - log 1.8))/(2) ]`