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  4. Equal volumes of 0.1 M AgNO3 and 0.2 M NaCl are mixed. The concentration of NO-3 ions in the mixture will be

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Q. Equal volumes of 0.1 M $AgNO_3$ and 0.2 M NaCl are mixed. The concentration of $NO^-_3$ ions in the mixture will be

BHUBHU 1994Solutions

Solution:

$\underset{0.1 \,M }{ AgNO _{3}} \longrightarrow Ag ^{+}+\underset{0.1 m \rightarrow \text { volume }= N _{3}^{-}}{ N _{1}}$
$M_{1}\, V_{1}=M_{2}\, V_{2} $ Equal volume
$0.1 \times V=M_{2}\left[V_{1}+V_{2}\right] \,\,\,\left[N_{1}=V_{2}=V\right]$
$0.1 \times V=M_{2}[V+V]$
$M _{2}=\frac{0.1 V }{2 V }=0.05$