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CBSE Class 12-science Answered

HOW TO FIND VANT OF FACTOR  
Asked by RAJAGUPTA | 01 Jan, 2020, 08:19: PM
Expert Answer

The relationship between the actual number of moles of solute added to form a solution and the apparent number as determined by colligative properties is called the van't Hoff factor (i).

 

 It is used to express the extent of association or dissociation of solute. If association or dissociation of solute particles takes place in the solution, then

 

Answered by Ramandeep | 02 Jan, 2020, 12:02: PM

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CBSE 12-science - Chemistry
HOW TO FIND VANT OF FACTOR  
Asked by RAJAGUPTA | 01 Jan, 2020, 08:19: PM
ANSWERED BY EXPERT
CBSE 12-science - Chemistry
Solution
Asked by brijk456 | 03 Sep, 2019, 12:07: AM
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CBSE 12-science - Chemistry
Value of Van't Hoff factor if CH3COOH 60% dissociates and 40% dimerized is–(1) 1.2, (2) 1.4, (3) 1.6, (4) 1.8
Asked by patra04011965 | 18 Jul, 2019, 04:07: PM
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CBSE 12-science - Chemistry
I know that answer is (a) but please explain the reason in detail
Asked by govtsecschoolnayaganv051 | 16 Jun, 2019, 10:55: PM
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CBSE 12-science - Chemistry
Calculate the freezing point of a solution containing 0.52 g glucose (C6H12O6) dissolved in 80.20g water. For water Kf = 1.86 K Kg mol-1
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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CBSE 12-science - Chemistry
0.90 g of an  1:2 electrolyte was dissolved in 87.90 g of benzene. This raised the boiling point of benzene by 0.250 C. If the molecular mass of the electrolyte is 103.0molar calculate the molal elevation constant for benzene. Given that the solute dissociate with degree of dissociation 0.25.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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CBSE 12-science - Chemistry
0.216molal solution of Cadmium sulphate is prepared in 1000gram of water. The depression in freezing point was measured to be 0.284K. Calculate the Vant hoff factor. The Cryoscopic constant for water is 1.86K Kg mol-1.
Asked by Topperlearning User | 20 Jun, 2016, 03:50: PM
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CBSE 12-science - Chemistry
Two molar solution of potassium Ferro cyanide has degree of dissociation 0.70 at 300K.Find out the osmotic pressure of the solution.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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CBSE 12-science - Chemistry
substance X forms trimer when added to Benzene calculates the freezing point of the 0.25 molal solution. The degree of association of the solute is found to be 0.80. The freezing point of the benzene is 5.5oC and its Cryoscopic constant is 5.12 K m-1.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
ANSWERED BY EXPERT
CBSE 12-science - Chemistry
Calculate the amount of KCl must be added to one kilogram of water so as to reduce its freezing point by two Kelvin. For water Kf = 1.86 K Kg mol-1.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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