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

Isotonic solutions must have the same: (i) solute (ii) density (iii) elevation in boiling point (iv) depression in freezing point

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प्रश्न

Isotonic solutions must have the same:

(i) solute

(ii) density

(iii) elevation in boiling point

(iv) depression in freezing point

टीपा लिहा
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उत्तर

(ii) density

(iii) elevation in boiling point

Explanation:

`pi` = CRT ot `pi = n_2/V RT`

Isotonic solutions must have same osmotic pressure at a given temperature hence must have same volume and number of moles i.e., same molar concentration. Thus, the isotonic solutions have same elevation in boiling point, and depression in freezing point.

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पाठ 2: Solutions - Exercises [पृष्ठ २३]

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
पाठ 2 Solutions
Exercises | Q II. 31. | पृष्ठ २३

संबंधित प्रश्‍न

A solution containing 15 g urea (molar mass = 60 g mol–1) per litre of solution in water has the same osmotic pressure (isotonic) as a solution of glucose (molar mass = 180 g mol–1) in water. Calculate the mass of glucose present in one litre of its solution.


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.

Explain reverse osmosis.


At constant temperature the osmotic pressure of a solution is ____________.


20 g of a substance were dissolved in 500 mL of water and the osmotic pressure of the solution was found to be 600 mm of mercury at 15°C. The molecular weight of the substance is ______.


The temperature at which 10% aqueous solution of (W/V) of glucose will show the osmotic pressure of 16.4 atoms is: (R = 0.082 L atom K−1 mol1)


At a given temperature, osmotic pressure of a concentrated solution of a substance ______.


Which of the following statements is false?


Discuss biological and industrial importance of osmosis.


Isotonic solutions have same


Which one of the following is a colligative property?


Assertion (A) : Osmotic pressure is a colligative property.

Reason (R) : Osmotic pressure is proportional to the molality.


Isotonic solutions are the solutions having the same ______.


Prove that: M2 = `(W_2RT)/(πV)`.


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


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)


Calculate the osmotic pressure of 0.2 M aqueous solution of nonelectrolyte at 300 K. 

[R = 0.082 atm dm3 mol−1K−1]


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