0.63 g of dibasic acid was dissolved in water. The volume of the solution was made 100 mL. 20 mL of this acid solution required 10 mL `N/5` NaOH solution. What is the normality of acid.

8g NaOH is dissolved in water and the solution is made upto 500 mL. find the molarity of solution.

0.592 g of calcium oxalate was dissolved in dilute acid and the solution was made up to 250 mL. 25 mL of this solution required 8.375 mL of 0.1 N KMnO_4 solution for complete oxidation. Calculate the percentage of calcium oxalate in calcium oxalate sample.

1.575 g of oxalic acid (COOH)_2. xH_2O are dissolved in water and the volume made upto 250 mL. On titration 16.68 mL of this solution requires 25 mL of N/15 NaOH solution for complete neutralization. Calculate x.

1.325 g of anhydrous sodium carbonate is dissolved in water and the solution is made up to 250 mL. On titration 25 mL of this solution neutralises 20 mL of a solution of H_2SO_4 . HOW much water should be added to 450 mL of this acid solution to make it exactly N/12 ?

The pH of the solution obtained by mixing 100 mL of a solution of pH=3 with 400 mL of a solution of pH=4 is

10ml 0.05 N H_2SO_4 solution is mixed with 10 ml 0.1 N NaOH solution. The pH of the final mixture is

20 mL 3(N) HCl solution is mixed with 15 mL 4(N)NaOH solution. What will be the pH of the resulting solution?

100 mL of 3(N) Na_(2)CO_(3) solution is diluted to 300 mL by adding water. Calculate the normality of this solution.