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प्रश्न
Write one difference in Coagulation and Peptization
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उत्तर
Coagulation and Peptization
| Coagulation | Peptization |
| The process of settling of colloidal particles is called coagulation or precipitation of the sol | The process of converting a precipitate into colloidal sol by shaking it with dispersion medium in presence of small amount of electrolyte (peptising agent) are also known as associated peptization |
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संबंधित प्रश्न
A solution of glucose in water is labelled as 10% (W/W).
Calculate:
a. Molality
b. Molarity of the solution.
[Given: Density of solution is 1.20 g mL-1 and molar mass of glucose is 180 g mol-1 ]
Calculate the mole fraction and molality of HNO3 in solution contaning 12.2%HNO3 (Given atomic mases:H=1, N=13,O=16)
A solution of glucose (molar mass = 180 g mol–1) in water is labelled as 10% (by mass). What would be the molality and molarity of the solution ? (Density of solution = 1.2 g mL–1)
The boiling point of benzene is 353.23 K. When 1.80 gram of non-volatile solute was dissolved in 90 gram of benzene, the boiling point is raised to 354.11 K. Calculate the molar mass of solute.
[Kb for benzene = 2.53 K kg mol-1]
An organic substance (M = 169 gram mol–1) is dissolved in 2000 cm3 of water. Its osmotic pressure at 12°C was found to be 0.54 atm. If R = 0.0821 L atm K–1 mol–1, calculate the mass of the solute.
Define the following terms :
a. Cryoscopic constant
b. Resistivity
The colligative property is not represented by ____________.
Colligative properties are observed when:
(i) a non volatile solid is dissolved in a volatile liquid.
(ii) a non volatile liquid is dissolved in another volatile liquid.
(iii) a gas is dissolved in non volatile liquid.
(iv) a volatile liquid is dissolved in another volatile liquid.
Why is the mass determined by measuring a colligative property in case of some solutes abnormal ? Discuss it with the help of Van’t Hoff factor.
Which of the following is a colligative property?
