Question 43

$$0.05$$ M $$CuSO_4$$ when treated with $$0.01$$ M $$K_2Cr_2O_7$$ gives green colour solution of $$Cu_2Cr_2O_7$$.

The two solutions are separated as shown below : [SPM : Semi Permeable Membrane]. Due to osmosis :

Solution

A Semi-Permeable Membrane is designed to allow only solvent molecules (typically water) to pass through, while blocking the passage of solute particles (ions like $$Cu^{2+},\ SO_4^{2-},\ K+$$) . Since, the concentration of solute particles in Y side is greater than X side the water molecules from X side will move towards Y side hence, decreasing the concentration of Y side i.e. CuSO4.

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$$0.05$$ M $$CuSO_4$$ when treated with $$0.01$$ M $$K_2Cr_2O_7$$ gives green colour solution of $$Cu_2Cr_2O_7$$. The two solutions are separated as shown below : [SPM : Semi Permeable Membrane]. Due to osmosis :