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  4. The mass of AgCl precipitated when a solution containing 11.70 g of NaCl is added to a solution containing 3.4 g of AgNO3 is [Atomic mass of Ag = 108, Atomic mass of Na = 23]

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Q. The mass of AgCl precipitated when a solution containing 11.70 g of NaCl is added to a solution containing 3.4 g of AgNO3 is [Atomic mass of Ag = 108, Atomic mass of Na = 23]

KCETKCET 2019Some Basic Concepts of Chemistry

Solution:

$Nacl+AgNO_{3} \to NaNO_{3}+Agcl$
$58.5+170\to143.5 g$
$\begin{matrix}\left(Limited\,reagent\right)&Nacl&:&AgNO_{3}\\ Required \, ratio&58.5&:&170\\ Given \, ratio&11.72&:&3.4 \left(limited\, reagent\right)\end{matrix}$
$170 g AgNO_{3} \to143.5 g Agcl$
$\therefore \, 3.4 g \,AgNO_{3} \to x$
$x=\frac{3.4\times143.5}{170}=2.87 \, g$