Chemistry - Liquid Solution Question with Solution | TestHub

Reaction:

$$K_4[Fe(CN{)}_6]+2CuC{l}_2\to C{u}_2[Fe(CN{)}_6]\downarrow +4KCl$$

0.1 mol K₄[Fe(CN)₆] reacts with 0.2 mol CuCl₂, so both completely consume and form precipitate.

Remaining solution contains:

$KCl=0.4mol$

Volume = 1 L, so concentration:

$C=0.4M$

For KCl:

$i=2$

Osmotic pressure:

$$\pi =iCRT$$

$$\pi =2(0.4)(0.0821)(304)$$

$$\pi \approx 19.9atm$$