Question

100 ml of 0.2 N Hcl solution is added to 100 ml 0f 0.2 N AgNO3 solution. Themalarity of nitrate ions in resulting mixture will be ??

Answer 1

For HCl and AgNO3, normality = molarity
So, 0.2 N HCl = 0.2 M HCl and 0.2 N AgNO3 = 0.2 M AgNO3

$$\begin{gathered} HCl+AgN{O}_3\to A{g}^{+}+C{l}^{-}+H^{+}+N{O}_3^{-} \\ 0.20.2 \end{gathered}$$

Number of moles of NO₃^- ions in the resulting solution = 0.2
Total volume of solution = 100 + 100 = 200 ml = 0.2 L
Molarity of nitrate ions in the resulting solution = 0.2/0.2 = 1 M