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Answer the following. What are isotonic and hypertonic solutions? - Chemistry

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प्रश्न

Answer the following.

What are isotonic and hypertonic solutions?

थोडक्यात उत्तर

उत्तर

  1. Isotonic solutions: Two or more solutions having the same osmotic pressure are said to be isotonic solutions.
    e.g. For example, 0.1 M urea solution and 0.1 M sucrose solution are isotonic because their osmotic pressures are equal. Such solutions have the same molar concentrations but different concentrations in g/L. If these solutions are separated by a semipermeable membrane, there is no flow of solvent in either direction.
  2. Hypertonic solution: If two solutions have unequal osmotic pressures, the more concentrated solution with higher osmotic pressure is said to be the hypertonic solution.
    e.g. For example, if osmotic pressure of sucrose solution is higher than that of urea solution, the sucrose solution is hypertonic to urea solution.
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पाठ 2: Solutions - Exercises [पृष्ठ ४५]

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बालभारती Chemistry [English] 12 Standard HSC
पाठ 2 Solutions
Exercises | Q 3.2 | पृष्ठ ४५

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संबंधित प्रश्‍न

Which of the following is not a colligative property?


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(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.


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Determine the osmotic pressure of a solution prepared by dissolving 25 mg of K2SO4 in 2 liter of water at 25°C, assuming that it is completely dissociated.


Define osmotic pressure.


Which of the following 0.1 M will aqueous solutions exert highest osmotic pressure?

(a) `Al_2(SO_4)_3`

(b) `Na_2SO_4`

(c) `MgCl_2`

(d) KCl


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Calculate the mass of NaCl (molar mass = 58.5 g mol−1) to be dissolved in 37.2 g of water to lower the freezing point by 2°C, assuming that NaCl undergoes complete dissociation. (Kf for water = 1.86 K kg mol−1)


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Define the following term:
isotonic solution


Choose the most correct option.

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Answer the following in one or two sentences.

What is osmotic pressure?


Answer the following in one or two sentences.

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Explain the phenomenon of osmosis.


Explain the term osmosis.


Which of the following is a colligative property?


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In isotonic solutions:

(i) Solute and solvent both are same.

(ii) Osmotic pressure is same.

(iii) Solute and solvent may or may not be same.

(iv) Solute is always same solvent may be different.


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Name the four colligative properties that are oftently used for determination of molecular mass.


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