250 mL of 0.1 N solution of HCI contains

What is the pH of the solution formed by mixing 25.0 mL of a 0.15 M solution of NH_(3) with 25.0 mL of 0.12 M HCI ? (K_(b) " for " NH_(3)=1.8xx10^(-5))

600 ml of a 0.1 (N) solution of AgNO_3 is added to 500 mL of 0.1 (N) KCI solution. The concentration of nitrate in the resulting solution is

250 ml of a solution contains 6.3 grams of oxalic acid (mol.wt. = 126). What is the volume (inlitres) owater to be added to this solution to make it a 0.1 N solution ?

20 mL of HCI soution requires 19.85 mL of 0.01 M NaOH solution for complete neutralization . The molarity of HCI solution is _______M.