20 ml of 0.4 M H_(2),SO_(4) , and 80 ml of 0.2 M NaOH are mixed. Then the p^(H)of the resulting solution is

20 ml of 0.4 M H_(2),SO_(4) , and 80 ml of 0.2 M NaOH are mixed. Then

1.	20 ml of 0.4 M H_(2),SO_(4) , and 80 ml of 0.2 M NaOH are mixed. Then the p^(H)of the resulting solution is
Answer» `7` `1.097` `12.903` `11.903` SOLUTION :` N_a = 0.4 xx 2 = 0. 8 M` ` V_a = 20 ml ,N_b= 0.2 N, V_b = 80 ml ` ` N_aV_a = 0.8 xx 20 = 16 ` meq ` N_b V_b = 0.2 xx 8 0 = 16` meq ` therefore N_aV_a = N_bV_b rArr pH = 7 ?`