Chemistry

Problem

Two acid solutions

A

and

B

are titrated separately each with 25 mL of 1

N

\text{Na}_2\text{CO}_3

solution. The volume of each acid used for titration is 10 mL and 40 mL respectively for the complete neutralisation. The volume ratio of

V_B

and

V_A

which is mixed to prepare one mL 1

N

solution is...