If 25ml of a sulphuric acid solution reacts completely with 1.06 g of pure sodium carbonate, what is the normality of this acid solution?

Q. If 25 mL of a $H_{2}S{O}_4$ solution reacts completely with 1.06 g of pure $N{a}_{2}C{O}_3$, what is the normality of this acid solution?

Q. Give balanced equation:
(a) Dilute sulphuric acid reacts with Aluminium powder
(b) Potassium carbonate reacts with hydrochloric acid
(c) Potassium hydroxide reacts with nitric acid
(d) Zinc reacts with sodium hydroxide solution

Q. In a sample of sodium carbonate some sodium sulphate is also mixed. $1.25g$ of this sample is dissolved and the volume made up to $250mL$. $25mL$ of this solution neutralises $20mL$ of $\frac{N}{10}$ sulphuric acid. Calculate the percentage of sodium carbonate in the sample.

Q. $1.325g$ of anhydrous sodium carbonate are dissolved in water and the solution made up to $250mL$. On titration $25mL$ of this solution neutralise $20mL$ of a solution of sulphuric acid. How much water should be added to $450mL$ of this acid solution to make it exactly $N/12$?