What is a semi-permeable membrane? Give examples.
(N/A) semi-permeable membrane is a type of biological or synthetic membrane that allows certain molecules or ions to pass through it by diffusion or specialized facilitated diffusion.
In the context of osmosis,it is a membrane that allows only the solvent molecules (e.g.,$H_2O$) to pass through while blocking the passage of solute molecules.
Examples:
$1$. Natural membranes: Pig's bladder,parchment paper,and animal skin.
$2$. Synthetic membranes: Cellophane,copper ferrocyanide $[Cu_2[Fe(CN)_6]]$,and cellulose acetate.
In the context of osmosis,it is a membrane that allows only the solvent molecules (e.g.,$H_2O$) to pass through while blocking the passage of solute molecules.
Examples:
$1$. Natural membranes: Pig's bladder,parchment paper,and animal skin.
$2$. Synthetic membranes: Cellophane,copper ferrocyanide $[Cu_2[Fe(CN)_6]]$,and cellulose acetate.
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The pressure required for the reverse osmosis is quite high. For this,which of the following membranes is used?
An unripe mango placed in a concentrated salt solution to prepare pickle,shrivels because . . . . . . .
What is the osmotic pressure of a semi-molar solution at $27^{\circ} C$ (in $atm$)?
$(R = 0.082 \ L \ atm \ K^{-1} \ mol^{-1})$
$(R = 0.082 \ L \ atm \ K^{-1} \ mol^{-1})$
Arrange the following solutions according to decreasing order of osmotic pressure under similar conditions of temperature,assuming complete dissociation:
$A. 0.2 \ m \ KCl$
$B. 0.3 \ m \ MgSO_4$
$C. 0.1 \ m \ BaCl_2$
$D. 0.5 \ m \ Al_2(SO_4)_3$
$A. 0.2 \ m \ KCl$
$B. 0.3 \ m \ MgSO_4$
$C. 0.1 \ m \ BaCl_2$
$D. 0.5 \ m \ Al_2(SO_4)_3$
Which of the following would have the highest osmotic pressure? (Assume that all salts are $90\%$ dissociated.)
Easy
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