$\pi = \text{..........}$

Due to osmosis,the volume of the more dilute solution ...

Define $Hypertonic$ solution and $Hypotonic$ solution.

Explain isotonic solutions.

$A$ solution is prepared by dissolving $0.6 \ g$ of urea (molar mass $= 60 \ g \ mol^{-1}$) and $1.8 \ g$ of glucose (molar mass $= 180 \ g \ mol^{-1}$) in $100 \ mL$ of water at $27 \ ^oC$. The osmotic pressure of the solution is : ............. $atm$ $(R = 0.08206 \ L \ atm \ K^{-1} \ mol^{-1})$

Explain reverse osmosis and the purification of water.