A solution containing a weak acid and its conjugate acts as an acidic buffer. In a buffer the dissociation of the well acid is suppressed by its conjugate base. (K_(1),K_(2), and K_(3), of H_(3)PO_(4), are 10_(-4), 10^(-4), 10^(-13) respectively What is the P^(H) of a solution obtained by mixing 100ml of 0.1 MH(3) PO_(4), and 150ml of 0.IM NaOH

A solution containing a weak acid and its conjugate acts as an acidic

1.	A solution containing a weak acid and its conjugate acts as an acidic buffer. In a buffer the dissociation of the well acid is suppressed by its conjugate base. (K_(1),K_(2), and K_(3), of H_(3)PO_(4), are 10_(-4), 10^(-4), 10^(-13) respectively What is the P^(H) of a solution obtained by mixing 100ml of 0.1 MH(3) PO_(4), and 150ml of 0.IM NaOH
Answer» `8` ` 9` ` 7` `6` Solution :` H_3 PO_4 + NaOH to NaH_2PO_4 +H_2O ` ` {:( 10 m " MOLES " , 15 m " moles" ,0) , ( - ,10" moles " , 10 "moles " ), (- , 5 " moles " , 10 m " moles ") :} ` ` NaH_2PO_4 + NaOH to Na_2HPO_4 + H_2O ` ` {:( 10 m " moles" , 5 m " moles ",0),( 5, - , 5 m " moles " ),( 5 m " moles" ,- , 5 m " moles") :} ` ` pH =P^(K_(A2)) + log ""(S)/(A)rArr pH = 8`