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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Give an example of a material used for making semipermeable membrane for carrying out reverse osmosis.

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प्रश्न

Give an example of a material used for making semipermeable membrane for carrying out reverse osmosis.

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उत्तर

Cellulose acetate, potassium ferrocyanide, etc. are used as semipermeable membrane for carrying out reverse osmosis.

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पाठ 2: Solutions - Exercises [पृष्ठ २५]

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
पाठ 2 Solutions
Exercises | Q III. 46. | पृष्ठ २५

संबंधित प्रश्‍न

What happens when the external pressure applied becomes more than the osmotic pressure of solution?


Blood cells are isotonic with 0.9% sodium chloride solution. What happens if we place blood cells in a solution containing

(i) 1.2% sodium chloride solution?

(ii) 0.4% sodium chloride solution?


Calculate the osmotic pressure in pascals exerted by a solution prepared by dissolving 1.0 g of polymer of molar mass 185,000 in 450 mL of water at 37°C.


Define osmotic pressure.


Define the following term:
isotonic solution


Choose the most correct option.

In calculating osmotic pressure the concentration of solute is expressed in _______.


Answer the following in one or two sentences.

A solution concentration is expressed in molarity and not in molality while considering osmotic pressure. Why?


Answer the following.

What are isotonic and hypertonic solutions?


Which of the following statements is applicable for 0.1 M urea solution and 0.1 M sucrose solution?


Which of the following is a colligative property?


The average osmotic pressure of human blood is 7.8 bar at 37°C. What is the concentration of an aqueous NaCl solution that could be used in the blood stream?


Which of the following statements is false?


Osmotic pressure of a solution increases if


Isotonic solutions have same


Derive an expression to calculate molar mass of non-volatile solute by osmotic pressure measurement.


Determine the osmotic pressure of a solution prepared by dissolving 2.32 × 10−2 g of K2SO4 in 2L of solution at 25°C assuming that K2SO4 is completely dissociated.

(R = 0.082 L atm K−1 mol, Molar mass K2SO4 = 174 g mol−1)


How will you determine molar mass of solute from osmotic pressure?


Write the condition of reverse osmosis.


Calculate the osmotic pressure of 0.03 mole of non electrolyte solute dissolved in 0.1 dm3 of water at 300 K. [R = 0.082 dm3 atm mol-1 K-1]


The 'X' g nonvolatile solute having molar mass 196 g mol-1 is dissolved in 3 dm³ water. Calculate the value of 'X' if resulting solution has osmotic pressure 0.8 atm at 300 К.
(R = 0.0821dm³ atm K-1 mol-1)


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