Question

How do we dilute concentrated Hydrochloric acid to give $10\%\mathrm{HCl}$?

Answer 1

Step 1: Calculating the ratio

To dilute concentrated Hydrochloric acid to make $10\%$ Hydrochloric acid, $90\%$will be water

Therefore, the proportion of Water and Hydrochloric acid taken is $9:1$,

That means for $100\mathrm{ml}$ $10\%\mathrm{HCl}$, to $90\mathrm{ml}$ Water add $10\mathrm{ml}$ of Hydrochloric acid should be taken.

Therefore, to give $10\%\mathrm{HCl}$ , take Water and Hydrochloric acid in of $9:1$ ratio.