Question

The molarity of $N{O}_3^{-}$ ions in the solution after $2$ lit of $3$M $AgN{O}_3$ is mixed with $3$ lit of $1$M $BaC{l}_2$ solution.

• A. $1.8$M
• B. $6$M
• C. $0.5$M
• D. $1.2$M

Answer 1

The correct option is D $1.2$M

Moles of ${N{O}_3}^{-}$ ions= $2\times 3=6$

Total volume= $2+3=5$ litres

$\therefore \left[{N{O}_3}^{-}\right]=\frac{6}{5}=1.2M$