10 ml of concentrated HCl were diluted to 1 litre. 20 ml of this diluted solution required 25 ml...

10mL of H_(2)O solution weighs 10 gm. The solution is diluted to 250mL. 25mL of this diluted solution required 40 mL of a M/50 solution of KMnO_(4) . Then, volume Strenght of original H_(2)O_(2) , solution is : Given: 5H_(2)O_(2)+2KMnO_(4)+6HCl to 2KCl+2MnCl_(2)+5O_(2)+8H_(2)O

A solution of H_(2)O_(2) labelled as '20 V' was left open. Due to this some, H_(2)O_(2) decomposed and volume strength of the solution decreased . To determine the new volume strength of the H_(2)O_(2) solution, 10 mL of the solution was taken and it was diluted to 100 mL . 10 mL of this diluted solution was titrated against 25 mL of 0.0245 M KMnO_(4) solution under acidic condition. Calculate the volume strength of the H_(2)O_(2) solution .

10 mL of concentrated H_2SO_4 (18M) is diluted to one litre. The approximate strength of the dilute acid is-