Chemistry · 2014
JEE Main · 19 April 2014, Shift 1 · Q38
The observed osmotic pressure for a 0.10 M solution of Fe ( NH_4)_2( SO_4)_2 at 25^° C is 10.8 atm. The expected and experimental (observed) values…
The observed osmotic pressure for a $\displaystyle 0.10$ M solution of $\displaystyle \mathrm{Fe}\left(\mathrm{NH}_4\right)_2\left(\mathrm{SO}_4\right)_2$ at $\displaystyle 25^{\circ} \mathrm{C}$ is $\displaystyle 10.8$ atm. The expected and experimental (observed) values of Van't Hoff factor (i) will be respectively : ( $\displaystyle \mathrm{R}=0.082 \mathrm{~L} \mathrm{~atm} \mathrm{k}^{-} \mathrm{mol}^{-1}$ )
Official answer
(1)
$\displaystyle 5$ and $\displaystyle 4.42$
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